2392857 has 6 divisors (see below), whose sum is σ = 3456362. Its totient is φ = 1595232.

The previous prime is 2392849. The next prime is 2392861. The reversal of 2392857 is 7582932.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 24336 = 1539^2 + 156^2 .

It is not a de Polignac number, because 2392857 - 2³ = 2392849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2392057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132928 + ... + 132945.

2^2392857 is an apocalyptic number.

It is an amenable number.

2392857 is a deficient number, since it is larger than the sum of its proper divisors (1063505).

2392857 is a wasteful number, since it uses less digits than its factorization.

2392857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265879 (or 265876 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2392857 is about 1546.8862272320. The cubic root of 2392857 is about 133.7536313685.

It can be divided in two parts, 2392 and 857, that added together give a square (3249 = 57²).

The spelling of 2392857 in words is "two million, three hundred ninety-two thousand, eight hundred fifty-seven".