56873999 has 16 divisors (see below), whose sum is σ = 70479360. Its totient is φ = 44690400.

The previous prime is 56873987. The next prime is 56874019. The reversal of 56873999 is 99937865.

It is a cyclic number.

It is not a de Polignac number, because 56873999 - 2¹⁶ = 56808463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56873909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11672 + ... + 15810.

It is an arithmetic number, because the mean of its divisors is an integer number (4404960).

Almost surely, 2^56873999 is an apocalyptic number.

56873999 is a deficient number, since it is larger than the sum of its proper divisors (13605361).

56873999 is a wasteful number, since it uses less digits than its factorization.

56873999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310.

The product of its digits is 3674160, while the sum is 56.

The square root of 56873999 is about 7541.4851985534. The cubic root of 56873999 is about 384.5663279001.

The spelling of 56873999 in words is "fifty-six million, eight hundred seventy-three thousand, nine hundred ninety-nine".