769876991 has 8 divisors (see below), whose sum is σ = 829353504. Its totient is φ = 710436960.

The previous prime is 769876963. The next prime is 769877021. The reversal of 769876991 is 199678967.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 769876991 - 2²⁶ = 702768127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769876901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48005 + ... + 62001.

It is an arithmetic number, because the mean of its divisors is an integer number (103669188).

Almost surely, 2^769876991 is an apocalyptic number.

769876991 is a deficient number, since it is larger than the sum of its proper divisors (59476513).

769876991 is a wasteful number, since it uses less digits than its factorization.

769876991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18241.

The product of its digits is 10287648, while the sum is 62.

The square root of 769876991 is about 27746.6572941679. The cubic root of 769876991 is about 916.5168351180.

The spelling of 769876991 in words is "seven hundred sixty-nine million, eight hundred seventy-six thousand, nine hundred ninety-one".