697448406 has 16 divisors (see below), whose sum is σ = 1399829184. Its totient is φ = 231660744.

The previous prime is 697448377. The next prime is 697448413. The reversal of 697448406 is 604844796.

It is a Curzon number.

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, 203676 + ... + 207071.

It is an arithmetic number, because the mean of its divisors is an integer number (87489324).

Almost surely, 2^697448406 is an apocalyptic number.

697448406 is an abundant number, since it is smaller than the sum of its proper divisors (702380778).

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

697448406 is a wasteful number, since it uses less digits than its factorization.

697448406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411035.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 697448406 is about 26409.2484936622. The cubic root of 697448406 is about 886.8238451325.

The spelling of 697448406 in words is "six hundred ninety-seven million, four hundred forty-eight thousand, four hundred six".