3918955 has 4 divisors (see below), whose sum is σ = 4702752. Its totient is φ = 3135160.

The previous prime is 3918949. The next prime is 3918983. The reversal of 3918955 is 5598193.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3918955 - 2⁵ = 3918923 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 391891 + ... + 391900.

It is an arithmetic number, because the mean of its divisors is an integer number (1175688).

Almost surely, 2^3918955 is an apocalyptic number.

3918955 is a deficient number, since it is larger than the sum of its proper divisors (783797).

3918955 is an equidigital number, since it uses as much as digits as its factorization.

3918955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783796.

The product of its digits is 48600, while the sum is 40.

The square root of 3918955 is about 1979.6350673798. The cubic root of 3918955 is about 157.6606909569.

The spelling of 3918955 in words is "three million, nine hundred eighteen thousand, nine hundred fifty-five".