68910972 has 24 divisors (see below), whose sum is σ = 173161296. Its totient is φ = 21203328.

The previous prime is 68910949. The next prime is 68910973. The reversal of 68910972 is 27901986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220713 + ... + 221024.

It is an arithmetic number, because the mean of its divisors is an integer number (7215054).

Almost surely, 2^68910972 is an apocalyptic number.

It is an amenable number.

68910972 is an abundant number, since it is smaller than the sum of its proper divisors (104250324).

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

68910972 is a wasteful number, since it uses less digits than its factorization.

68910972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441757 (or 441755 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 68910972 is about 8301.2632773572. The cubic root of 68910972 is about 409.9801140464.

The spelling of 68910972 in words is "sixty-eight million, nine hundred ten thousand, nine hundred seventy-two".