766504345 has 16 divisors (see below), whose sum is σ = 939703248. Its totient is φ = 600042240.

The previous prime is 766504337. The next prime is 766504363. The reversal of 766504345 is 543405667.

It can be written as a sum of positive squares in 8 ways, for example, as 100489 + 766403856 = 317^2 + 27684^2 .

It is not a de Polignac number, because 766504345 - 2³ = 766504337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 766504298 and 766504307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53707 + ... + 66463.

It is an arithmetic number, because the mean of its divisors is an integer number (58731453).

Almost surely, 2^766504345 is an apocalyptic number.

It is an amenable number.

766504345 is a deficient number, since it is larger than the sum of its proper divisors (173198903).

766504345 is a wasteful number, since it uses less digits than its factorization.

766504345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 766504345 is about 27685.8148697126. The cubic root of 766504345 is about 915.1765293890.

The spelling of 766504345 in words is "seven hundred sixty-six million, five hundred four thousand, three hundred forty-five".