78998710 has 16 divisors (see below), whose sum is σ = 162511776. Its totient is φ = 27085248.

The previous prime is 78998707. The next prime is 78998719. The reversal of 78998710 is 1789987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78998719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564207 + ... + 564346.

It is an arithmetic number, because the mean of its divisors is an integer number (10156986).

Almost surely, 2^78998710 is an apocalyptic number.

78998710 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78998710 is an abundant number, since it is smaller than the sum of its proper divisors (83513066).

78998710 is a wasteful number, since it uses less digits than its factorization.

78998710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128567.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 78998710 is about 8888.1218488497. The cubic root of 78998710 is about 429.0817071692.

It can be divided in two parts, 789 and 98710, that added together give a palindrome (99499).

The spelling of 78998710 in words is "seventy-eight million, nine hundred ninety-eight thousand, seven hundred ten".