57644849 has 2 divisors, whose sum is σ = 57644850. Its totient is φ = 57644848.

The previous prime is 57644827. The next prime is 57644863. The reversal of 57644849 is 94844675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 868624 = 7535^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 57644849 - 2²⁴ = 40867633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57644809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28822424 + 28822425.

It is an arithmetic number, because the mean of its divisors is an integer number (28822425).

Almost surely, 2^57644849 is an apocalyptic number.

It is an amenable number.

57644849 is a deficient number, since it is larger than the sum of its proper divisors (1).

57644849 is an equidigital number, since it uses as much as digits as its factorization.

57644849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The square root of 57644849 is about 7592.4204967849. The cubic root of 57644849 is about 386.2959621750.

The spelling of 57644849 in words is "fifty-seven million, six hundred forty-four thousand, eight hundred forty-nine".