67497972 has 24 divisors (see below), whose sum is σ = 161337792. Its totient is φ = 21950400.

The previous prime is 67497971. The next prime is 67498019. The reversal of 67497972 is 27979476.

It is a happy number.

It is a super-2 number, since 2×67497972² = 9111952448225568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67497971) 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, 68104 + ... + 69087.

It is an arithmetic number, because the mean of its divisors is an integer number (6722408).

Almost surely, 2^67497972 is an apocalyptic number.

It is an amenable number.

67497972 is an abundant number, since it is smaller than the sum of its proper divisors (93839820).

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

67497972 is a wasteful number, since it uses less digits than its factorization.

67497972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137239 (or 137237 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 51.

The square root of 67497972 is about 8215.7149415008. The cubic root of 67497972 is about 407.1585647899.

The spelling of 67497972 in words is "sixty-seven million, four hundred ninety-seven thousand, nine hundred seventy-two".