764738948 has 24 divisors (see below), whose sum is σ = 1436436792. Its totient is φ = 354945024.

The previous prime is 764738917. The next prime is 764738959. The reversal of 764738948 is 849837467.

It can be written as a sum of positive squares in 4 ways, for example, as 153561664 + 611177284 = 12392^2 + 24722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 764738893 and 764738902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72065 + ... + 81992.

It is an arithmetic number, because the mean of its divisors is an integer number (59851533).

Almost surely, 2^764738948 is an apocalyptic number.

It is an amenable number.

764738948 is a deficient number, since it is larger than the sum of its proper divisors (671697844).

764738948 is a wasteful number, since it uses less digits than its factorization.

764738948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154151 (or 154149 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 56.

The square root of 764738948 is about 27653.9137917221. The cubic root of 764738948 is about 914.4733840527.

The spelling of 764738948 in words is "seven hundred sixty-four million, seven hundred thirty-eight thousand, nine hundred forty-eight".