764704436 has 6 divisors (see below), whose sum is σ = 1338232770. Its totient is φ = 382352216.

The previous prime is 764704427. The next prime is 764704463. The reversal of 764704436 is 634407467.

It can be written as a sum of positive squares in only one way, i.e., 626500900 + 138203536 = 25030^2 + 11756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 764704393 and 764704402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95588051 + ... + 95588058.

It is an arithmetic number, because the mean of its divisors is an integer number (223038795).

Almost surely, 2^764704436 is an apocalyptic number.

It is an amenable number.

764704436 is a deficient number, since it is larger than the sum of its proper divisors (573528334).

764704436 is a wasteful number, since it uses less digits than its factorization.

764704436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191176113 (or 191176111 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 764704436 is about 27653.2897862081. The cubic root of 764704436 is about 914.4596273844.

The spelling of 764704436 in words is "seven hundred sixty-four million, seven hundred four thousand, four hundred thirty-six".