66927372 has 24 divisors (see below), whose sum is σ = 158496576. Its totient is φ = 21975888.

The previous prime is 66927361. The next prime is 66927383. The reversal of 66927372 is 27372966.

It is an interprime number because it is at equal distance from previous prime (66927361) and next prime (66927383).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40818 + ... + 42425.

It is an arithmetic number, because the mean of its divisors is an integer number (6604024).

Almost surely, 2^66927372 is an apocalyptic number.

It is an amenable number.

66927372 is an abundant number, since it is smaller than the sum of its proper divisors (91569204).

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

66927372 is a wasteful number, since it uses less digits than its factorization.

66927372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83317 (or 83315 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 66927372 is about 8180.9151077370. The cubic root of 66927372 is about 406.0079997130.

The spelling of 66927372 in words is "sixty-six million, nine hundred twenty-seven thousand, three hundred seventy-two".