697440652 has 12 divisors (see below), whose sum is σ = 1241208360. Its totient is φ = 342809696.

The previous prime is 697440649. The next prime is 697440671. The reversal of 697440652 is 256044796.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 697440599 and 697440608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477393 + ... + 1477864.

It is an arithmetic number, because the mean of its divisors is an integer number (103434030).

Almost surely, 2^697440652 is an apocalyptic number.

It is an amenable number.

697440652 is a deficient number, since it is larger than the sum of its proper divisors (543767708).

697440652 is a wasteful number, since it uses less digits than its factorization.

697440652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955320 (or 2955318 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 697440652 is about 26409.1016886224. The cubic root of 697440652 is about 886.8205586492.

The spelling of 697440652 in words is "six hundred ninety-seven million, four hundred forty thousand, six hundred fifty-two".