764402089 has 8 divisors (see below), whose sum is σ = 834120000. Its totient is φ = 694722000.

The previous prime is 764402087. The next prime is 764402101. The reversal of 764402089 is 980204467.

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 764402089 - 2¹ = 764402087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764402083) 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, 48039 + ... + 61939.

It is an arithmetic number, because the mean of its divisors is an integer number (104265000).

Almost surely, 2^764402089 is an apocalyptic number.

It is an amenable number.

764402089 is a deficient number, since it is larger than the sum of its proper divisors (69717911).

764402089 is a wasteful number, since it uses less digits than its factorization.

764402089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18911.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 764402089 is about 27647.8225001536. The cubic root of 764402089 is about 914.3390925483.

The spelling of 764402089 in words is "seven hundred sixty-four million, four hundred two thousand, eighty-nine".