791121634 has 8 divisors (see below), whose sum is σ = 1187136720. Its totient is φ = 395409396.

The previous prime is 791121631. The next prime is 791121637. The reversal of 791121634 is 436121197.

It is an interprime number because it is at equal distance from previous prime (791121631) and next prime (791121637).

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

It is a self number, because there is not a number n which added to its sum of digits gives 791121634.

It is not an unprimeable number, because it can be changed into a prime (791121631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69064 + ... + 79699.

It is an arithmetic number, because the mean of its divisors is an integer number (148392090).

Almost surely, 2^791121634 is an apocalyptic number.

791121634 is a deficient number, since it is larger than the sum of its proper divisors (396015086).

791121634 is a wasteful number, since it uses less digits than its factorization.

791121634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151424.

The product of its digits is 9072, while the sum is 34.

The square root of 791121634 is about 28126.8845413067. The cubic root of 791121634 is about 924.8708401106.

The spelling of 791121634 in words is "seven hundred ninety-one million, one hundred twenty-one thousand, six hundred thirty-four".