764424009 has 12 divisors (see below), whose sum is σ = 1139786752. Its totient is φ = 493176600.

The previous prime is 764423999. The next prime is 764424041. The reversal of 764424009 is 900424467.

764424009 is a `hidden beast` number, since 7 + 644 + 2 + 4 + 0 + 0 + 9 = 666.

It is not a de Polignac number, because 764424009 - 2⁴ = 764423993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764424209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1369657 + ... + 1370214.

Almost surely, 2^764424009 is an apocalyptic number.

It is an amenable number.

764424009 is a deficient number, since it is larger than the sum of its proper divisors (375362743).

764424009 is a wasteful number, since it uses less digits than its factorization.

764424009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739908 (or 2739905 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 764424009 is about 27648.2189118938. The cubic root of 764424009 is about 914.3478323297.

The spelling of 764424009 in words is "seven hundred sixty-four million, four hundred twenty-four thousand, nine".