57871871 has 2 divisors, whose sum is σ = 57871872. Its totient is φ = 57871870.

The previous prime is 57871843. The next prime is 57871883. The reversal of 57871871 is 17817875.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57871871 - 2¹⁰ = 57870847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57871831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28935935 + 28935936.

It is an arithmetic number, because the mean of its divisors is an integer number (28935936).

Almost surely, 2^57871871 is an apocalyptic number.

57871871 is a deficient number, since it is larger than the sum of its proper divisors (1).

57871871 is an equidigital number, since it uses as much as digits as its factorization.

57871871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109760, while the sum is 44.

The square root of 57871871 is about 7607.3563739317. The cubic root of 57871871 is about 386.8024127856.

The spelling of 57871871 in words is "fifty-seven million, eight hundred seventy-one thousand, eight hundred seventy-one".