3156849 has 24 divisors (see below), whose sum is σ = 4942080. Its totient is φ = 1934208.

The previous prime is 3156841. The next prime is 3156871. The reversal of 3156849 is 9486513.

It is not a de Polignac number, because 3156849 - 2³ = 3156841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3156841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6972 + ... + 7410.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

Almost surely, 2^3156849 is an apocalyptic number.

It is an amenable number.

3156849 is a deficient number, since it is larger than the sum of its proper divisors (1785231).

3156849 is a wasteful number, since it uses less digits than its factorization.

3156849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 506 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3156849 is about 1776.7523744180. The cubic root of 3156849 is about 146.6958866254.

It can be divided in two parts, 3156 and 849, that added together give a triangular number (4005 = T₈₉).

The spelling of 3156849 in words is "three million, one hundred fifty-six thousand, eight hundred forty-nine".