694164424 has 16 divisors (see below), whose sum is σ = 1313078220. Its totient is φ = 344010240.

The previous prime is 694164413. The next prime is 694164433. The reversal of 694164424 is 424461496.

It can be written as a sum of positive squares in 2 ways, for example, as 635947524 + 58216900 = 25218^2 + 7630^2 .

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, 383037 + ... + 384844.

Almost surely, 2^694164424 is an apocalyptic number.

It is an amenable number.

694164424 is a deficient number, since it is larger than the sum of its proper divisors (618913796).

694164424 is a wasteful number, since it uses less digits than its factorization.

694164424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768000 (or 767996 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 694164424 is about 26347.0002846624. Note that the first 3 decimals coincide. The cubic root of 694164424 is about 885.4297652003.

The spelling of 694164424 in words is "six hundred ninety-four million, one hundred sixty-four thousand, four hundred twenty-four".