697260564 has 216 divisors, whose sum is σ = 2385743360. Its totient is φ = 167080320.

The previous prime is 697260563. The next prime is 697260581. The reversal of 697260564 is 465062796.

697260564 is a `hidden beast` number, since 69 + 7 + 26 + 0 + 564 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697260563) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 395517 + ... + 397275.

Almost surely, 2^697260564 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 697260564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192871680).

697260564 is an abundant number, since it is smaller than the sum of its proper divisors (1688482796).

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

697260564 is a wasteful number, since it uses less digits than its factorization.

697260564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 697260564 is about 26405.6918864096. The cubic root of 697260564 is about 886.7442226493.

The spelling of 697260564 in words is "six hundred ninety-seven million, two hundred sixty thousand, five hundred sixty-four".