75651972 has 48 divisors (see below), whose sum is σ = 203902272. Its totient is φ = 21575680.

The previous prime is 75651971. The next prime is 75652019. The reversal of 75651972 is 27915657.

It is not an unprimeable number, because it can be changed into a prime (75651971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14613 + ... + 19100.

It is an arithmetic number, because the mean of its divisors is an integer number (4247964).

Almost surely, 2^75651972 is an apocalyptic number.

It is an amenable number.

75651972 is an abundant number, since it is smaller than the sum of its proper divisors (128250300).

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

75651972 is a wasteful number, since it uses less digits than its factorization.

75651972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33748 (or 33746 counting only the distinct ones).

The product of its digits is 132300, while the sum is 42.

The square root of 75651972 is about 8697.8142081790. The cubic root of 75651972 is about 422.9347964931.

The spelling of 75651972 in words is "seventy-five million, six hundred fifty-one thousand, nine hundred seventy-two".