696966638 has 8 divisors (see below), whose sum is σ = 1045589088. Its totient is φ = 348436944.

The previous prime is 696966617. The next prime is 696966659. The reversal of 696966638 is 836669696.

It is an interprime number because it is at equal distance from previous prime (696966617) and next prime (696966659).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 395 + ... + 37337.

It is an arithmetic number, because the mean of its divisors is an integer number (130698636).

Almost surely, 2^696966638 is an apocalyptic number.

696966638 is a deficient number, since it is larger than the sum of its proper divisors (348622450).

696966638 is a wasteful number, since it uses less digits than its factorization.

696966638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46378.

The product of its digits is 15116544, while the sum is 59.

The square root of 696966638 is about 26400.1257193976. The cubic root of 696966638 is about 886.6196045712.

The spelling of 696966638 in words is "six hundred ninety-six million, nine hundred sixty-six thousand, six hundred thirty-eight".