1057979899 has 2 divisors, whose sum is σ = 1057979900. Its totient is φ = 1057979898.

The previous prime is 1057979891. The next prime is 1057979911. The reversal of 1057979899 is 9989797501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1057979899 - 2³ = 1057979891 is a prime.

It is a super-2 number, since 2×1057979899² = 2238642933376100402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057979899.

It is not a weakly prime, because it can be changed into another prime (1057979891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528989949 + 528989950.

It is an arithmetic number, because the mean of its divisors is an integer number (528989950).

Almost surely, 2^1057979899 is an apocalyptic number.

1057979899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057979899 is an equidigital number, since it uses as much as digits as its factorization.

1057979899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12859560, while the sum is 64.

The square root of 1057979899 is about 32526.6029428220. The cubic root of 1057979899 is about 1018.9646995572.

The spelling of 1057979899 in words is "one billion, fifty-seven million, nine hundred seventy-nine thousand, eight hundred ninety-nine".