711991098 has 96 divisors (see below), whose sum is σ = 1921885056. Its totient is φ = 185480064.

The previous prime is 711991097. The next prime is 711991099. The reversal of 711991098 is 890199117.

711991098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (711991097) and next prime (711991099).

It is not an unprimeable number, because it can be changed into a prime (711991097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133336 + ... + 138572.

It is an arithmetic number, because the mean of its divisors is an integer number (20019636).

Almost surely, 2^711991098 is an apocalyptic number.

711991098 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 711991098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960942528).

711991098 is an abundant number, since it is smaller than the sum of its proper divisors (1209893958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

711991098 is a wasteful number, since it uses less digits than its factorization.

711991098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348 (or 5345 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 45.

The square root of 711991098 is about 26683.1613194539. The cubic root of 711991098 is about 892.9452976444.

It can be divided in two parts, 71199109 and 8, that added together give a palindrome (71199117).

The spelling of 711991098 in words is "seven hundred eleven million, nine hundred ninety-one thousand, ninety-eight".