76727272 has 16 divisors (see below), whose sum is σ = 148824900. Its totient is φ = 37040640.

The previous prime is 76727269. The next prime is 76727279. The reversal of 76727272 is 27272767.

It can be written as a sum of positive squares in 2 ways, for example, as 69789316 + 6937956 = 8354^2 + 2634^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (76727279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165129 + ... + 165592.

Almost surely, 2^76727272 is an apocalyptic number.

It is an amenable number.

76727272 is a deficient number, since it is larger than the sum of its proper divisors (72097628).

76727272 is a wasteful number, since it uses less digits than its factorization.

76727272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330756 (or 330752 counting only the distinct ones).

The product of its digits is 115248, while the sum is 40.

The square root of 76727272 is about 8759.4104824469. The cubic root of 76727272 is about 424.9292098935.

The spelling of 76727272 in words is "seventy-six million, seven hundred twenty-seven thousand, two hundred seventy-two".