691364234 has 72 divisors (see below), whose sum is σ = 1223302080. Its totient is φ = 292612320.

The previous prime is 691364227. The next prime is 691364273. The reversal of 691364234 is 432463196.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8751407 + ... + 8751485.

Almost surely, 2^691364234 is an apocalyptic number.

691364234 is a deficient number, since it is larger than the sum of its proper divisors (531937846).

691364234 is a wasteful number, since it uses less digits than its factorization.

691364234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 164 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 691364234 is about 26293.8060006535. The cubic root of 691364234 is about 884.2375822796.

The spelling of 691364234 in words is "six hundred ninety-one million, three hundred sixty-four thousand, two hundred thirty-four".