3189855 has 16 divisors (see below), whose sum is σ = 5280480. Its totient is φ = 1642368.

The previous prime is 3189839. The next prime is 3189871. The reversal of 3189855 is 5589813.

It is an interprime number because it is at equal distance from previous prime (3189839) and next prime (3189871).

It is not a de Polignac number, because 3189855 - 2⁴ = 3189839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3232 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (330030).

Almost surely, 2^3189855 is an apocalyptic number.

3189855 is a deficient number, since it is larger than the sum of its proper divisors (2090625).

3189855 is a wasteful number, since it uses less digits than its factorization.

3189855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370.

The product of its digits is 43200, while the sum is 39.

The square root of 3189855 is about 1786.0165172808. The cubic root of 3189855 is about 147.2053680058.

The spelling of 3189855 in words is "three million, one hundred eighty-nine thousand, eight hundred fifty-five".