57728097 has 12 divisors (see below), whose sum is σ = 95297280. Its totient is φ = 32987448.

The previous prime is 57728093. The next prime is 57728117. The reversal of 57728097 is 79082775.

57728097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57728097 - 2² = 57728093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57728093) 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 in 11 ways as a sum of consecutive naturals, for example, 458097 + ... + 458222.

It is an arithmetic number, because the mean of its divisors is an integer number (7941440).

Almost surely, 2^57728097 is an apocalyptic number.

It is an amenable number.

57728097 is a deficient number, since it is larger than the sum of its proper divisors (37569183).

57728097 is a wasteful number, since it uses less digits than its factorization.

57728097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916332 (or 916329 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 57728097 is about 7597.9008285184. The cubic root of 57728097 is about 386.4818295953.

The spelling of 57728097 in words is "fifty-seven million, seven hundred twenty-eight thousand, ninety-seven".