68633456 has 20 divisors (see below), whose sum is σ = 133107552. Its totient is φ = 34283136.

The previous prime is 68633431. The next prime is 68633497. The reversal of 68633456 is 65433686.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26825 + ... + 29271.

Almost surely, 2^68633456 is an apocalyptic number.

It is an amenable number.

68633456 is a deficient number, since it is larger than the sum of its proper divisors (64474096).

68633456 is a wasteful number, since it uses less digits than its factorization.

68633456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208 (or 4202 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 68633456 is about 8284.5311273481. The cubic root of 68633456 is about 409.4290207910.

The spelling of 68633456 in words is "sixty-eight million, six hundred thirty-three thousand, four hundred fifty-six".