75666972 has 24 divisors (see below), whose sum is σ = 179044992. Its totient is φ = 24866800.

The previous prime is 75666967. The next prime is 75666973. The reversal of 75666972 is 27966657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75666973) 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, 43554 + ... + 45257.

It is an arithmetic number, because the mean of its divisors is an integer number (7460208).

Almost surely, 2^75666972 is an apocalyptic number.

It is an amenable number.

75666972 is an abundant number, since it is smaller than the sum of its proper divisors (103378020).

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

75666972 is a wasteful number, since it uses less digits than its factorization.

75666972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88889 (or 88887 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The square root of 75666972 is about 8698.6764510470. The cubic root of 75666972 is about 422.9627473076.

The spelling of 75666972 in words is "seventy-five million, six hundred sixty-six thousand, nine hundred seventy-two".