697242984 has 64 divisors (see below), whose sum is σ = 1794623040. Its totient is φ = 225638400.

The previous prime is 697242971. The next prime is 697242989. The reversal of 697242984 is 489242796.

It is a super-2 number, since 2×697242984² = 972295557474448512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (697242989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120559 + ... + 126209.

It is an arithmetic number, because the mean of its divisors is an integer number (28040985).

Almost surely, 2^697242984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697242984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897311520).

697242984 is an abundant number, since it is smaller than the sum of its proper divisors (1097380056).

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

697242984 is a wasteful number, since it uses less digits than its factorization.

697242984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810 (or 5806 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 697242984 is about 26405.3590015360. The cubic root of 697242984 is about 886.7367701056.

The spelling of 697242984 in words is "six hundred ninety-seven million, two hundred forty-two thousand, nine hundred eighty-four".