697904 has 20 divisors (see below), whose sum is σ = 1379376. Its totient is φ = 341952.

The previous prime is 697897. The next prime is 697909. The reversal of 697904 is 409796.

It is a happy number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697904.

It is not an unprimeable number, because it can be changed into a prime (697909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437 + ... + 1259.

2⁶⁹⁷⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

697904 is a deficient number, since it is larger than the sum of its proper divisors (681472).

697904 is a wasteful number, since it uses less digits than its factorization.

697904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 697904 is about 835.4064878848. The cubic root of 697904 is about 88.7016902988.

The spelling of 697904 in words is "six hundred ninety-seven thousand, nine hundred four".