76857472 has 16 divisors (see below), whose sum is σ = 153114750. Its totient is φ = 38428672.

The previous prime is 76857461. The next prime is 76857481. The reversal of 76857472 is 27475867.

It can be written as a sum of positive squares in only one way, i.e., 59351616 + 17505856 = 7704^2 + 4184^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300097 + ... + 300352.

Almost surely, 2^76857472 is an apocalyptic number.

It is an amenable number.

76857472 is a deficient number, since it is larger than the sum of its proper divisors (76257278).

76857472 is an equidigital number, since it uses as much as digits as its factorization.

76857472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600463 (or 600451 counting only the distinct ones).

The product of its digits is 658560, while the sum is 46.

The square root of 76857472 is about 8766.8393392374. The cubic root of 76857472 is about 425.1694309461.

The spelling of 76857472 in words is "seventy-six million, eight hundred fifty-seven thousand, four hundred seventy-two".