697564 has 18 divisors (see below), whose sum is σ = 1420440. Its totient is φ = 298872.

The previous prime is 697553. The next prime is 697579. The reversal of 697564 is 465796.

697564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1584 + ... + 1975.

2⁶⁹⁷⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

697564 is an abundant number, since it is smaller than the sum of its proper divisors (722876).

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

697564 is a wasteful number, since it uses less digits than its factorization.

697564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577 (or 3568 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 697564 is about 835.2029693434. The cubic root of 697564 is about 88.6872836022.

The spelling of 697564 in words is "six hundred ninety-seven thousand, five hundred sixty-four".