68972910 has 32 divisors (see below), whose sum is σ = 175273632. Its totient is φ = 17310720.

The previous prime is 68972909. The next prime is 68972957. The reversal of 68972910 is 1927986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67111 + ... + 68130.

It is an arithmetic number, because the mean of its divisors is an integer number (5477301).

Almost surely, 2^68972910 is an apocalyptic number.

68972910 is an abundant number, since it is smaller than the sum of its proper divisors (106300722).

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

68972910 is a wasteful number, since it uses less digits than its factorization.

68972910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135268.

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

The square root of 68972910 is about 8304.9930764571. The cubic root of 68972910 is about 410.1029089290.

The spelling of 68972910 in words is "sixty-eight million, nine hundred seventy-two thousand, nine hundred ten".