3685172 has 6 divisors (see below), whose sum is σ = 6449058. Its totient is φ = 1842584.

The previous prime is 3685169. The next prime is 3685211. The reversal of 3685172 is 2715863.

It is a happy number.

3685172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2062096 + 1623076 = 1436^2 + 1274^2 .

It is a congruent number.

It is an unprimeable number.

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, 460643 + ... + 460650.

It is an arithmetic number, because the mean of its divisors is an integer number (1074843).

Almost surely, 2^3685172 is an apocalyptic number.

It is an amenable number.

3685172 is a deficient number, since it is larger than the sum of its proper divisors (2763886).

3685172 is a wasteful number, since it uses less digits than its factorization.

3685172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921297 (or 921295 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 3685172 is about 1919.6801816969. The cubic root of 3685172 is about 154.4611465508.

The spelling of 3685172 in words is "three million, six hundred eighty-five thousand, one hundred seventy-two".