1057793915 has 8 divisors (see below), whose sum is σ = 1284646608. Its totient is φ = 836039200.

The previous prime is 1057793911. The next prime is 1057793917. The reversal of 1057793915 is 5193977501.

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

It is not a de Polignac number, because 1057793915 - 2² = 1057793911 is a prime.

It is a super-2 number, since 2×1057793915² = 2237855933222054450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057793915.

It is not an unprimeable number, because it can be changed into a prime (1057793911) 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 7 ways as a sum of consecutive naturals, for example, 1274036 + ... + 1274865.

It is an arithmetic number, because the mean of its divisors is an integer number (160580826).

Almost surely, 2^1057793915 is an apocalyptic number.

1057793915 is a deficient number, since it is larger than the sum of its proper divisors (226852693).

1057793915 is an equidigital number, since it uses as much as digits as its factorization.

1057793915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548989.

The product of its (nonzero) digits is 297675, while the sum is 47.

The square root of 1057793915 is about 32523.7438650596. The cubic root of 1057793915 is about 1018.9049875731.

The spelling of 1057793915 in words is "one billion, fifty-seven million, seven hundred ninety-three thousand, nine hundred fifteen".