3697885 has 8 divisors (see below), whose sum is σ = 4449240. Its totient is φ = 2950464.

The previous prime is 3697867. The next prime is 3697907. The reversal of 3697885 is 5887963.

It can be written as a sum of positive squares in 4 ways, for example, as 1920996 + 1776889 = 1386^2 + 1333^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3697885 - 2⁵ = 3697853 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 1819 + ... + 3271.

It is an arithmetic number, because the mean of its divisors is an integer number (556155).

Almost surely, 2^3697885 is an apocalyptic number.

It is an amenable number.

3697885 is a deficient number, since it is larger than the sum of its proper divisors (751355).

3697885 is a wasteful number, since it uses less digits than its factorization.

3697885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967.

The product of its digits is 362880, while the sum is 46.

The square root of 3697885 is about 1922.9885595084. The cubic root of 3697885 is about 154.6385612286.

The spelling of 3697885 in words is "three million, six hundred ninety-seven thousand, eight hundred eighty-five".