791567655 has 32 divisors (see below), whose sum is σ = 1349720064. Its totient is φ = 395214336.

The previous prime is 791567653. The next prime is 791567663. The reversal of 791567655 is 556765197.

It is not a de Polignac number, because 791567655 - 2¹ = 791567653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 791567598 and 791567607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791567653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8194 + ... + 40623.

It is an arithmetic number, because the mean of its divisors is an integer number (42178752).

Almost surely, 2^791567655 is an apocalyptic number.

791567655 is a deficient number, since it is larger than the sum of its proper divisors (558152409).

791567655 is a wasteful number, since it uses less digits than its factorization.

791567655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48895.

The product of its digits is 1984500, while the sum is 51.

The square root of 791567655 is about 28134.8121550509. The cubic root of 791567655 is about 925.0446163042.

The spelling of 791567655 in words is "seven hundred ninety-one million, five hundred sixty-seven thousand, six hundred fifty-five".