12458857 has 2 divisors, whose sum is σ = 12458858. Its totient is φ = 12458856.

The previous prime is 12458839. The next prime is 12458861. The reversal of 12458857 is 75885421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 1628176 = 3291^2 + 1276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12458857 is a prime.

It is not a weakly prime, because it can be changed into another prime (12458057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6229428 + 6229429.

It is an arithmetic number, because the mean of its divisors is an integer number (6229429).

Almost surely, 2^12458857 is an apocalyptic number.

It is an amenable number.

12458857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12458857 is an equidigital number, since it uses as much as digits as its factorization.

12458857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 40.

The square root of 12458857 is about 3529.7106113675. The cubic root of 12458857 is about 231.8245366217.

The spelling of 12458857 in words is "twelve million, four hundred fifty-eight thousand, eight hundred fifty-seven".