68624836 has 12 divisors (see below), whose sum is σ = 137249728. Its totient is φ = 29410632.

The previous prime is 68624833. The next prime is 68624849. The reversal of 68624836 is 63842686.

68624836 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68624792 and 68624801.

It is not an unprimeable number, because it can be changed into a prime (68624833) 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, 1225416 + ... + 1225471.

Almost surely, 2^68624836 is an apocalyptic number.

It is an amenable number.

68624836 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.

68624836 is a wasteful number, since it uses less digits than its factorization.

68624836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450898 (or 2450896 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 68624836 is about 8284.0108643096. The cubic root of 68624836 is about 409.4118793650.

The spelling of 68624836 in words is "sixty-eight million, six hundred twenty-four thousand, eight hundred thirty-six".