3899918 has 8 divisors (see below), whose sum is σ = 6381720. Its totient is φ = 1772680.

The previous prime is 3899887. The next prime is 3899927. The reversal of 3899918 is 8199983.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88613 + ... + 88656.

It is an arithmetic number, because the mean of its divisors is an integer number (797715).

Almost surely, 2^3899918 is an apocalyptic number.

3899918 is a deficient number, since it is larger than the sum of its proper divisors (2481802).

3899918 is a wasteful number, since it uses less digits than its factorization.

3899918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177282.

The product of its digits is 139968, while the sum is 47.

The square root of 3899918 is about 1974.8210045470. The cubic root of 3899918 is about 157.4049884674.

The spelling of 3899918 in words is "three million, eight hundred ninety-nine thousand, nine hundred eighteen".