769091691 has 16 divisors (see below), whose sum is σ = 1051891200. Its totient is φ = 499606368.

The previous prime is 769091681. The next prime is 769091693. The reversal of 769091691 is 196190967.

It is not a de Polignac number, because 769091691 - 2¹⁰ = 769090667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 769091691.

It is not an unprimeable number, because it can be changed into a prime (769091693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20380 + ... + 44198.

It is an arithmetic number, because the mean of its divisors is an integer number (65743200).

Almost surely, 2^769091691 is an apocalyptic number.

769091691 is a deficient number, since it is larger than the sum of its proper divisors (282799509).

769091691 is a wasteful number, since it uses less digits than its factorization.

769091691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24098.

The product of its (nonzero) digits is 183708, while the sum is 48.

The square root of 769091691 is about 27732.5024294599. The cubic root of 769091691 is about 916.2051032709.

The spelling of 769091691 in words is "seven hundred sixty-nine million, ninety-one thousand, six hundred ninety-one".