72476057 has 2 divisors, whose sum is σ = 72476058. Its totient is φ = 72476056.

The previous prime is 72476039. The next prime is 72476093. The reversal of 72476057 is 75067427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38241856 + 34234201 = 6184^2 + 5851^2 .

It is a cyclic number.

It is not a de Polignac number, because 72476057 - 2¹⁸ = 72213913 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72476057.

It is not a weakly prime, because it can be changed into another prime (72476857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36238028 + 36238029.

It is an arithmetic number, because the mean of its divisors is an integer number (36238029).

Almost surely, 2^72476057 is an apocalyptic number.

It is an amenable number.

72476057 is a deficient number, since it is larger than the sum of its proper divisors (1).

72476057 is an equidigital number, since it uses as much as digits as its factorization.

72476057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 72476057 is about 8513.2870854917. The cubic root of 72476057 is about 416.9316386777.

The spelling of 72476057 in words is "seventy-two million, four hundred seventy-six thousand, fifty-seven".