3899155 has 16 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 2855808.

The previous prime is 3899153. The next prime is 3899173. The reversal of 3899155 is 5519983.

It is a cyclic number.

It is not a de Polignac number, because 3899155 - 2¹ = 3899153 is a prime.

3899155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3899153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14361 + ... + 14629.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^3899155 is an apocalyptic number.

3899155 is a deficient number, since it is larger than the sum of its proper divisors (1181165).

3899155 is a wasteful number, since it uses less digits than its factorization.

3899155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

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

The square root of 3899155 is about 1974.6278130321. The cubic root of 3899155 is about 157.3947226243.

The spelling of 3899155 in words is "three million, eight hundred ninety-nine thousand, one hundred fifty-five".