697499880 has 512 divisors, whose sum is σ = 2861568000. Its totient is φ = 131604480.

The previous prime is 697499867. The next prime is 697499893. The reversal of 697499880 is 88994796.

It is an interprime number because it is at equal distance from previous prime (697499867) and next prime (697499893).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5091172 + ... + 5091308.

It is an arithmetic number, because the mean of its divisors is an integer number (5589000).

Almost surely, 2^697499880 is an apocalyptic number.

697499880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697499880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430784000).

697499880 is an abundant number, since it is smaller than the sum of its proper divisors (2164068120).

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

697499880 is a wasteful number, since it uses less digits than its factorization.

697499880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 697499880 is about 26410.2230206411. The cubic root of 697499880 is about 886.8456614405.

The spelling of 697499880 in words is "six hundred ninety-seven million, four hundred ninety-nine thousand, eight hundred eighty".