791687904 has 96 divisors (see below), whose sum is σ = 2423635200. Its totient is φ = 226187136.

The previous prime is 791687891. The next prime is 791687917. The reversal of 791687904 is 409786197.

It is an interprime number because it is at equal distance from previous prime (791687891) and next prime (791687917).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20907 + ... + 44949.

It is an arithmetic number, because the mean of its divisors is an integer number (25246200).

Almost surely, 2^791687904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791687904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211817600).

791687904 is an abundant number, since it is smaller than the sum of its proper divisors (1631947296).

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

791687904 is a wasteful number, since it uses less digits than its factorization.

791687904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24077 (or 24055 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 791687904 is about 28136.9490883429. The cubic root of 791687904 is about 925.0914558709.

The spelling of 791687904 in words is "seven hundred ninety-one million, six hundred eighty-seven thousand, nine hundred four".