791680417 has 4 divisors (see below), whose sum is σ = 863651376. Its totient is φ = 719709460.

The previous prime is 791680411. The next prime is 791680457. The reversal of 791680417 is 714086197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791680417 is a prime.

It is a super-2 number, since 2×791680417² = 1253515765322587778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791680411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35985463 + ... + 35985484.

It is an arithmetic number, because the mean of its divisors is an integer number (215912844).

Almost surely, 2^791680417 is an apocalyptic number.

It is an amenable number.

791680417 is a deficient number, since it is larger than the sum of its proper divisors (71970959).

791680417 is a wasteful number, since it uses less digits than its factorization.

791680417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71970958.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 791680417 is about 28136.8160423314. The cubic root of 791680417 is about 925.0885396622.

The spelling of 791680417 in words is "seven hundred ninety-one million, six hundred eighty thousand, four hundred seventeen".