2472857 has 2 divisors, whose sum is σ = 2472858. Its totient is φ = 2472856.

The previous prime is 2472853. The next prime is 2472893. The reversal of 2472857 is 7582742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 1042441 = 1196^2 + 1021^2 .

It is a cyclic number.

It is not a de Polignac number, because 2472857 - 2² = 2472853 is a prime.

It is a super-2 number, since 2×2472857² = 12230043484898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2472851) 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 as a sum of consecutive naturals, namely, 1236428 + 1236429.

It is an arithmetic number, because the mean of its divisors is an integer number (1236429).

2^2472857 is an apocalyptic number.

It is an amenable number.

2472857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2472857 is an equidigital number, since it uses as much as digits as its factorization.

2472857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 35.

The square root of 2472857 is about 1572.5320346499. The cubic root of 2472857 is about 135.2279094898.

The spelling of 2472857 in words is "two million, four hundred seventy-two thousand, eight hundred fifty-seven".