764906 has 8 divisors (see below), whose sum is σ = 1154244. Its totient is φ = 380160.

The previous prime is 764903. The next prime is 764947. The reversal of 764906 is 609467.

It can be written as a sum of positive squares in 2 ways, for example, as 434281 + 330625 = 659^2 + 575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (764903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695 + ... + 1418.

2⁷⁶⁴⁹⁰⁶ is an apocalyptic number.

764906 is a deficient number, since it is larger than the sum of its proper divisors (389338).

764906 is a wasteful number, since it uses less digits than its factorization.

764906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 764906 is about 874.5890463526. The cubic root of 764906 is about 91.4539966026.

The spelling of 764906 in words is "seven hundred sixty-four thousand, nine hundred six".