1057887671 has 2 divisors, whose sum is σ = 1057887672. Its totient is φ = 1057887670.

The previous prime is 1057887667. The next prime is 1057887773. The reversal of 1057887671 is 1767887501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1057887671 - 2² = 1057887667 is a prime.

It is a super-2 number, since 2×1057887671² = 2238252648907608482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1057887601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528943835 + 528943836.

It is an arithmetic number, because the mean of its divisors is an integer number (528943836).

Almost surely, 2^1057887671 is an apocalyptic number.

1057887671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057887671 is an equidigital number, since it uses as much as digits as its factorization.

1057887671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 50.

The square root of 1057887671 is about 32525.1851801031. The cubic root of 1057887671 is about 1018.9350897296.

The spelling of 1057887671 in words is "one billion, fifty-seven million, eight hundred eighty-seven thousand, six hundred seventy-one".