764406 has 12 divisors (see below), whose sum is σ = 1656252. Its totient is φ = 254796.

The previous prime is 764399. The next prime is 764431. The reversal of 764406 is 604467.

It is a self number, because there is not a number n which added to its sum of digits gives 764406.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 21216 + ... + 21251.

It is an arithmetic number, because the mean of its divisors is an integer number (138021).

2⁷⁶⁴⁴⁰⁶ is an apocalyptic number.

764406 is an abundant number, since it is smaller than the sum of its proper divisors (891846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764406 is a wasteful number, since it uses less digits than its factorization.

764406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42475 (or 42472 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 764406 is about 874.3031510866. The cubic root of 764406 is about 91.4340651926.

The spelling of 764406 in words is "seven hundred sixty-four thousand, four hundred six".