791021634 has 32 divisors (see below), whose sum is σ = 1705099200. Its totient is φ = 243196992.

The previous prime is 791021599. The next prime is 791021639. The reversal of 791021634 is 436120197.

It is a junction number, because it is equal to n+sod(n) for n = 791021595 and 791021604.

It is not an unprimeable number, because it can be changed into a prime (791021639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117549 + ... + 124095.

It is an arithmetic number, because the mean of its divisors is an integer number (53284350).

Almost surely, 2^791021634 is an apocalyptic number.

791021634 is an abundant number, since it is smaller than the sum of its proper divisors (914077566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791021634 is a wasteful number, since it uses less digits than its factorization.

791021634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 791021634 is about 28125.1068264638. The cubic root of 791021634 is about 924.8318697099.

The spelling of 791021634 in words is "seven hundred ninety-one million, twenty-one thousand, six hundred thirty-four".