8390057 has 16 divisors (see below), whose sum is σ = 9461760. Its totient is φ = 7387200.

The previous prime is 8390051. The next prime is 8390069. The reversal of 8390057 is 7500938.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8390057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8390051) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 43832 + ... + 44022.

It is an arithmetic number, because the mean of its divisors is an integer number (591360).

Almost surely, 2^8390057 is an apocalyptic number.

It is an amenable number.

8390057 is a deficient number, since it is larger than the sum of its proper divisors (1071703).

8390057 is a wasteful number, since it uses less digits than its factorization.

8390057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 8390057 is about 2896.5595108680. The cubic root of 8390057 is about 203.1990331164.

The spelling of 8390057 in words is "eight million, three hundred ninety thousand, fifty-seven".