57871973 has 2 divisors, whose sum is σ = 57871974. Its totient is φ = 57871972.

The previous prime is 57871969. The next prime is 57871997. The reversal of 57871973 is 37917875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38353249 + 19518724 = 6193^2 + 4418^2 .

It is a cyclic number.

It is not a de Polignac number, because 57871973 - 2² = 57871969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57871903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28935986 + 28935987.

It is an arithmetic number, because the mean of its divisors is an integer number (28935987).

Almost surely, 2^57871973 is an apocalyptic number.

It is an amenable number.

57871973 is a deficient number, since it is larger than the sum of its proper divisors (1).

57871973 is an equidigital number, since it uses as much as digits as its factorization.

57871973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 47.

The square root of 57871973 is about 7607.3630779660. The cubic root of 57871973 is about 386.8026400337.

The spelling of 57871973 in words is "fifty-seven million, eight hundred seventy-one thousand, nine hundred seventy-three".