791110057 has 4 divisors (see below), whose sum is σ = 791172036. Its totient is φ = 791048080.

The previous prime is 791110009. The next prime is 791110069. The reversal of 791110057 is 750011197.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 750011197 = 13 ⋅57693169.

It can be written as a sum of positive squares in 2 ways, for example, as 562828176 + 228281881 = 23724^2 + 15109^2 .

It is a cyclic number.

It is not a de Polignac number, because 791110057 - 2¹⁵ = 791077289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791116057) 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, 4018 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (197793009).

Almost surely, 2^791110057 is an apocalyptic number.

It is an amenable number.

791110057 is a deficient number, since it is larger than the sum of its proper divisors (61979).

791110057 is a wasteful number, since it uses less digits than its factorization.

791110057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61978.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 791110057 is about 28126.6787410103. The cubic root of 791110057 is about 924.8663286754.

The spelling of 791110057 in words is "seven hundred ninety-one million, one hundred ten thousand, fifty-seven".