57608891 has 2 divisors, whose sum is σ = 57608892. Its totient is φ = 57608890.

The previous prime is 57608879. The next prime is 57608897. The reversal of 57608891 is 19880675.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57608891 - 2¹⁸ = 57346747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57608897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28804445 + 28804446.

It is an arithmetic number, because the mean of its divisors is an integer number (28804446).

Almost surely, 2^57608891 is an apocalyptic number.

57608891 is a deficient number, since it is larger than the sum of its proper divisors (1).

57608891 is an equidigital number, since it uses as much as digits as its factorization.

57608891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 57608891 is about 7590.0521078580. The cubic root of 57608891 is about 386.2156235748.

The spelling of 57608891 in words is "fifty-seven million, six hundred eight thousand, eight hundred ninety-one".