408764 has 6 divisors (see below), whose sum is σ = 715344. Its totient is φ = 204380.

The previous prime is 408763. The next prime is 408769. The reversal of 408764 is 467804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51092 + ... + 51099.

It is an arithmetic number, because the mean of its divisors is an integer number (119224).

2⁴⁰⁸⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

408764 is a deficient number, since it is larger than the sum of its proper divisors (306580).

408764 is a wasteful number, since it uses less digits than its factorization.

408764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102195 (or 102193 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 408764 is about 639.3465413999. The cubic root of 408764 is about 74.2148612958.

The spelling of 408764 in words is "four hundred eight thousand, seven hundred sixty-four".