67251972 has 24 divisors (see below), whose sum is σ = 160749792. Its totient is φ = 21870400.

The previous prime is 67251967. The next prime is 67251973. The reversal of 67251972 is 27915276.

It is a self number, because there is not a number n which added to its sum of digits gives 67251972.

It is not an unprimeable number, because it can be changed into a prime (67251973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67854 + ... + 68837.

It is an arithmetic number, because the mean of its divisors is an integer number (6697908).

Almost surely, 2^67251972 is an apocalyptic number.

It is an amenable number.

67251972 is an abundant number, since it is smaller than the sum of its proper divisors (93497820).

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

67251972 is a wasteful number, since it uses less digits than its factorization.

67251972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136739 (or 136737 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 67251972 is about 8200.7299675090. The cubic root of 67251972 is about 406.6633255421.

The spelling of 67251972 in words is "sixty-seven million, two hundred fifty-one thousand, nine hundred seventy-two".