697528385 has 16 divisors (see below), whose sum is σ = 854020800. Its totient is φ = 546760896.

The previous prime is 697528379. The next prime is 697528393. The reversal of 697528385 is 583825796.

It is a cyclic number.

It is not a de Polignac number, because 697528385 - 2⁴ = 697528369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89786 + ... + 97244.

It is an arithmetic number, because the mean of its divisors is an integer number (53376300).

Almost surely, 2^697528385 is an apocalyptic number.

It is an amenable number.

697528385 is a deficient number, since it is larger than the sum of its proper divisors (156492415).

697528385 is a wasteful number, since it uses less digits than its factorization.

697528385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7840.

The product of its digits is 3628800, while the sum is 53.

The square root of 697528385 is about 26410.7626735768. The cubic root of 697528385 is about 886.8577422986.

The spelling of 697528385 in words is "six hundred ninety-seven million, five hundred twenty-eight thousand, three hundred eighty-five".