764395045 has 8 divisors (see below), whose sum is σ = 929839896. Its totient is φ = 603138816.

The previous prime is 764395043. The next prime is 764395063. The reversal of 764395045 is 540593467.

It can be written as a sum of positive squares in 4 ways, for example, as 193710724 + 570684321 = 13918^2 + 23889^2 .

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 764395045 - 2¹ = 764395043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764394992 and 764395010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764395043) 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, 1046752 + ... + 1047481.

It is an arithmetic number, because the mean of its divisors is an integer number (116229987).

Almost surely, 2^764395045 is an apocalyptic number.

It is an amenable number.

764395045 is a deficient number, since it is larger than the sum of its proper divisors (165444851).

764395045 is a wasteful number, since it uses less digits than its factorization.

764395045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094311.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 764395045 is about 27647.6951118895. The cubic root of 764395045 is about 914.3362839809.

The spelling of 764395045 in words is "seven hundred sixty-four million, three hundred ninety-five thousand, forty-five".