764345811 has 4 divisors (see below), whose sum is σ = 1019127752. Its totient is φ = 509563872.

The previous prime is 764345809. The next prime is 764345839. The reversal of 764345811 is 118543467.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 764345811 - 2¹ = 764345809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 764345811.

It is not an unprimeable number, because it can be changed into a prime (764345801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127390966 + ... + 127390971.

It is an arithmetic number, because the mean of its divisors is an integer number (254781938).

Almost surely, 2^764345811 is an apocalyptic number.

764345811 is a deficient number, since it is larger than the sum of its proper divisors (254781941).

764345811 is a wasteful number, since it uses less digits than its factorization.

764345811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254781940.

The product of its digits is 80640, while the sum is 39.

The square root of 764345811 is about 27646.8047159161. The cubic root of 764345811 is about 914.3166530325.

The spelling of 764345811 in words is "seven hundred sixty-four million, three hundred forty-five thousand, eight hundred eleven".