68987472 has 20 divisors (see below), whose sum is σ = 178217760. Its totient is φ = 22995808.

The previous prime is 68987459. The next prime is 68987473. The reversal of 68987472 is 27478986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68987473) 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, 718572 + ... + 718667.

It is an arithmetic number, because the mean of its divisors is an integer number (8910888).

Almost surely, 2^68987472 is an apocalyptic number.

It is an amenable number.

68987472 is an abundant number, since it is smaller than the sum of its proper divisors (109230288).

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

68987472 is a wasteful number, since it uses less digits than its factorization.

68987472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437250 (or 1437244 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 68987472 is about 8305.8697317018. The cubic root of 68987472 is about 410.1317680774.

The spelling of 68987472 in words is "sixty-eight million, nine hundred eighty-seven thousand, four hundred seventy-two".