3105972 has 24 divisors (see below), whose sum is σ = 8052800. Its totient is φ = 1035288.

The previous prime is 3105967. The next prime is 3105979. The reversal of 3105972 is 2795013.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14272 + ... + 14487.

Almost surely, 2^3105972 is an apocalyptic number.

It is an amenable number.

3105972 is an abundant number, since it is smaller than the sum of its proper divisors (4946828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3105972 is a wasteful number, since it uses less digits than its factorization.

3105972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28772 (or 28764 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3105972 is about 1762.3768042050. The cubic root of 3105972 is about 145.9035454741.

The spelling of 3105972 in words is "three million, one hundred five thousand, nine hundred seventy-two".