1057079785 has 8 divisors (see below), whose sum is σ = 1285872840. Its totient is φ = 834079104.

The previous prime is 1057079731. The next prime is 1057079809. The reversal of 1057079785 is 5879707501.

1057079785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 192543376 + 864536409 = 13876^2 + 29403^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1057079785 - 2⁷ = 1057079657 is a prime.

It is a super-2 number, since 2×1057079785² = 2234835343711292450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447690 + ... + 1448419.

It is an arithmetic number, because the mean of its divisors is an integer number (160734105).

Almost surely, 2^1057079785 is an apocalyptic number.

It is an amenable number.

1057079785 is a deficient number, since it is larger than the sum of its proper divisors (228793055).

1057079785 is an equidigital number, since it uses as much as digits as its factorization.

1057079785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896187.

The product of its (nonzero) digits is 617400, while the sum is 49.

The square root of 1057079785 is about 32512.7634168491. The cubic root of 1057079785 is about 1018.6756440894.

The spelling of 1057079785 in words is "one billion, fifty-seven million, seventy-nine thousand, seven hundred eighty-five".