68694556 has 12 divisors (see below), whose sum is σ = 137389168. Its totient is φ = 29440512.

The previous prime is 68694553. The next prime is 68694599. The reversal of 68694556 is 65549686.

It is a happy number.

68694556 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68694551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226661 + ... + 1226716.

Almost surely, 2^68694556 is an apocalyptic number.

It is an amenable number.

68694556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68694556 is a wasteful number, since it uses less digits than its factorization.

68694556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453388 (or 2453386 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The square root of 68694556 is about 8288.2179025409. The cubic root of 68694556 is about 409.5504809597.

The spelling of 68694556 in words is "sixty-eight million, six hundred ninety-four thousand, five hundred fifty-six".