68913972 has 36 divisors (see below), whose sum is σ = 174472480. Its totient is φ = 22935312.

The previous prime is 68913881. The next prime is 68913973. The reversal of 68913972 is 27931986.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68913973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32043 + ... + 34125.

Almost surely, 2^68913972 is an apocalyptic number.

It is an amenable number.

68913972 is an abundant number, since it is smaller than the sum of its proper divisors (105558508).

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

68913972 is a wasteful number, since it uses less digits than its factorization.

68913972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3007 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 68913972 is about 8301.4439707800. The cubic root of 68913972 is about 409.9860633772.

The spelling of 68913972 in words is "sixty-eight million, nine hundred thirteen thousand, nine hundred seventy-two".