2445857 has 2 divisors, whose sum is σ = 2445858. Its totient is φ = 2445856.

The previous prime is 2445847. The next prime is 2445881. The reversal of 2445857 is 7585442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2430481 + 15376 = 1559^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445857 - 2⁸ = 2445601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2445827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222928 + 1222929.

It is an arithmetic number, because the mean of its divisors is an integer number (1222929).

2^2445857 is an apocalyptic number.

It is an amenable number.

2445857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445857 is an equidigital number, since it uses as much as digits as its factorization.

2445857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44800, while the sum is 35.

The square root of 2445857 is about 1563.9235914839. The cubic root of 2445857 is about 134.7339433093.

The spelling of 2445857 in words is "two million, four hundred forty-five thousand, eight hundred fifty-seven".