1057793791 has 4 divisors (see below), whose sum is σ = 1067154912. Its totient is φ = 1048432672.

The previous prime is 1057793729. The next prime is 1057793833. The reversal of 1057793791 is 1973977501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1057793791 - 2⁹ = 1057793279 is a prime.

It is a super-2 number, since 2×1057793791² = 2237855408556303362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057793291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4680391 + ... + 4680616.

It is an arithmetic number, because the mean of its divisors is an integer number (266788728).

Almost surely, 2^1057793791 is an apocalyptic number.

1057793791 is a deficient number, since it is larger than the sum of its proper divisors (9361121).

1057793791 is an equidigital number, since it uses as much as digits as its factorization.

1057793791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361120.

The product of its (nonzero) digits is 416745, while the sum is 49.

The square root of 1057793791 is about 32523.7419587599. The cubic root of 1057793791 is about 1018.9049477594.

The spelling of 1057793791 in words is "one billion, fifty-seven million, seven hundred ninety-three thousand, seven hundred ninety-one".