3668904 has 24 divisors (see below), whose sum is σ = 9936810. Its totient is φ = 1222944.

The previous prime is 3668897. The next prime is 3668909. The reversal of 3668904 is 4098663.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 1102500 = 1602^2 + 1050^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×3668904² = 26921713122432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3668909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25407 + ... + 25550.

Almost surely, 2^3668904 is an apocalyptic number.

It is an amenable number.

3668904 is an abundant number, since it is smaller than the sum of its proper divisors (6267906).

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

3668904 is a wasteful number, since it uses less digits than its factorization.

3668904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50969 (or 50962 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3668904 is about 1915.4383310355. The cubic root of 3668904 is about 154.2335243819.

The spelling of 3668904 in words is "three million, six hundred sixty-eight thousand, nine hundred four".