68979036 has 48 divisors (see below), whose sum is σ = 184504320. Its totient is φ = 19648320.

The previous prime is 68979019. The next prime is 68979109. The reversal of 68979036 is 63097986.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 31621 + ... + 33731.

It is an arithmetic number, because the mean of its divisors is an integer number (3843840).

Almost surely, 2^68979036 is an apocalyptic number.

It is an amenable number.

68979036 is an abundant number, since it is smaller than the sum of its proper divisors (115525284).

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

68979036 is a wasteful number, since it uses less digits than its factorization.

68979036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 68979036 is about 8305.3618825431. The cubic root of 68979036 is about 410.1150500051.

The spelling of 68979036 in words is "sixty-eight million, nine hundred seventy-nine thousand, thirty-six".