1030857979 has 4 divisors (see below), whose sum is σ = 1035135640. Its totient is φ = 1026580320.

The previous prime is 1030857959. The next prime is 1030858001. The reversal of 1030857979 is 9797580301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9797580301 = 17 ⋅576328253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030857979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030857929) 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 3 ways as a sum of consecutive naturals, for example, 2138469 + ... + 2138950.

It is an arithmetic number, because the mean of its divisors is an integer number (258783910).

Almost surely, 2^1030857979 is an apocalyptic number.

1030857979 is a deficient number, since it is larger than the sum of its proper divisors (4277661).

1030857979 is an equidigital number, since it uses as much as digits as its factorization.

1030857979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277660.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 1030857979 is about 32106.9771077876. The cubic root of 1030857979 is about 1010.1819686511.

The spelling of 1030857979 in words is "one billion, thirty million, eight hundred fifty-seven thousand, nine hundred seventy-nine".