769321506 has 8 divisors (see below), whose sum is σ = 1538643024. Its totient is φ = 256440500.

The previous prime is 769321481. The next prime is 769321529. The reversal of 769321506 is 605123967.

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

769321506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64110120 + ... + 64110131.

It is an arithmetic number, because the mean of its divisors is an integer number (192330378).

Almost surely, 2^769321506 is an apocalyptic number.

769321506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

769321506 is a wasteful number, since it uses less digits than its factorization.

769321506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128220256.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 769321506 is about 27736.6455433962. The cubic root of 769321506 is about 916.2963523419.

The spelling of 769321506 in words is "seven hundred sixty-nine million, three hundred twenty-one thousand, five hundred six".