1057870671 has 64 divisors (see below), whose sum is σ = 1789240320. Its totient is φ = 546416640.

The previous prime is 1057870661. The next prime is 1057870739. The reversal of 1057870671 is 1760787501.

It is a de Polignac number, because none of the positive numbers 2^k-1057870671 is a prime.

It is a super-2 number, since 2×1057870671² = 2238180713123980482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057870661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 284295 + ... + 287991.

It is an arithmetic number, because the mean of its divisors is an integer number (27956880).

Almost surely, 2^1057870671 is an apocalyptic number.

1057870671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1057870671 is a deficient number, since it is larger than the sum of its proper divisors (731369649).

1057870671 is a wasteful number, since it uses less digits than its factorization.

1057870671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3776.

The product of its (nonzero) digits is 82320, while the sum is 42.

The square root of 1057870671 is about 32524.9238431084. The cubic root of 1057870671 is about 1018.9296316865.

The spelling of 1057870671 in words is "one billion, fifty-seven million, eight hundred seventy thousand, six hundred seventy-one".