1057979886 has 8 divisors (see below), whose sum is σ = 2115959784. Its totient is φ = 352659960.

The previous prime is 1057979863. The next prime is 1057979891. The reversal of 1057979886 is 6889797501.

It is a sphenic number, since it is the product of 3 distinct primes.

1057979886 is an admirable number.

It is a super-2 number, since 2×1057979886² = 2238642878361145992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88164985 + ... + 88164996.

It is an arithmetic number, because the mean of its divisors is an integer number (264494973).

Almost surely, 2^1057979886 is an apocalyptic number.

1057979886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057979886 is a wasteful number, since it uses less digits than its factorization.

1057979886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176329986.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The square root of 1057979886 is about 32526.6027429856. The cubic root of 1057979886 is about 1018.9646953836.

The spelling of 1057979886 in words is "one billion, fifty-seven million, nine hundred seventy-nine thousand, eight hundred eighty-six".