2320857 has 48 divisors (see below), whose sum is σ = 4447872. Its totient is φ = 1128960.

The previous prime is 2320847. The next prime is 2320859. The reversal of 2320857 is 7580232.

It is not a de Polignac number, because 2320857 - 2⁷ = 2320729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2320857.

It is not an unprimeable number, because it can be changed into a prime (2320859) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11683 + ... + 11879.

It is an arithmetic number, because the mean of its divisors is an integer number (92664).

2^2320857 is an apocalyptic number.

It is an amenable number.

2320857 is a deficient number, since it is larger than the sum of its proper divisors (2127015).

2320857 is a wasteful number, since it uses less digits than its factorization.

2320857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2320857 is about 1523.4359192299. The cubic root of 2320857 is about 132.3984174532.

The spelling of 2320857 in words is "two million, three hundred twenty thousand, eight hundred fifty-seven".