76128872 has 16 divisors (see below), whose sum is σ = 142892100. Its totient is φ = 38024320.

The previous prime is 76128863. The next prime is 76128893. The reversal of 76128872 is 27882167.

It can be written as a sum of positive squares in 2 ways, for example, as 75446596 + 682276 = 8686^2 + 826^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4004 + ... + 12972.

Almost surely, 2^76128872 is an apocalyptic number.

It is an amenable number.

76128872 is a deficient number, since it is larger than the sum of its proper divisors (66763228).

76128872 is a wasteful number, since it uses less digits than its factorization.

76128872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036 (or 10032 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 76128872 is about 8725.1860725144. The cubic root of 76128872 is about 423.8216438646.

The spelling of 76128872 in words is "seventy-six million, one hundred twenty-eight thousand, eight hundred seventy-two".