697404838 has 16 divisors (see below), whose sum is σ = 1192847040. Its totient is φ = 302944896.

The previous prime is 697404797. The next prime is 697404857. The reversal of 697404838 is 838404796.

It is a junction number, because it is equal to n+sod(n) for n = 697404791 and 697404800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788478 + ... + 789361.

It is an arithmetic number, because the mean of its divisors is an integer number (74552940).

Almost surely, 2^697404838 is an apocalyptic number.

697404838 is a deficient number, since it is larger than the sum of its proper divisors (495442202).

697404838 is a wasteful number, since it uses less digits than its factorization.

697404838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577871.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 697404838 is about 26408.4236182321. The cubic root of 697404838 is about 886.8053787984.

The spelling of 697404838 in words is "six hundred ninety-seven million, four hundred four thousand, eight hundred thirty-eight".