76425728 has 20 divisors (see below), whose sum is σ = 152703210. Its totient is φ = 38212608.

The previous prime is 76425721. The next prime is 76425731. The reversal of 76425728 is 82752467.

It can be written as a sum of positive squares in only one way, i.e., 63234304 + 13191424 = 7952^2 + 3632^2 .

It is not an unprimeable number, because it can be changed into a prime (76425721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74123 + ... + 75146.

Almost surely, 2^76425728 is an apocalyptic number.

It is an amenable number.

76425728 is a deficient number, since it is larger than the sum of its proper divisors (76277482).

76425728 is an equidigital number, since it uses as much as digits as its factorization.

76425728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149287 (or 149271 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 76425728 is about 8742.1809635811. The cubic root of 76425728 is about 424.3718110369.

The spelling of 76425728 in words is "seventy-six million, four hundred twenty-five thousand, seven hundred twenty-eight".