3613918 has 32 divisors (see below), whose sum is σ = 6985728. Its totient is φ = 1360800.

The previous prime is 3613889. The next prime is 3613931. The reversal of 3613918 is 8193163.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 3613918.

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 15 ways as a sum of consecutive naturals, for example, 4396 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (218304).

Almost surely, 2^3613918 is an apocalyptic number.

3613918 is a deficient number, since it is larger than the sum of its proper divisors (3371810).

3613918 is a wasteful number, since it uses less digits than its factorization.

3613918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its digits is 3888, while the sum is 31.

The square root of 3613918 is about 1901.0307730281. The cubic root of 3613918 is about 153.4591416540.

The spelling of 3613918 in words is "three million, six hundred thirteen thousand, nine hundred eighteen".