3121974 has 24 divisors (see below), whose sum is σ = 7059312. Its totient is φ = 995280.

The previous prime is 3121973. The next prime is 3121981. The reversal of 3121974 is 4791213.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3357 + ... + 4184.

It is an arithmetic number, because the mean of its divisors is an integer number (294138).

Almost surely, 2^3121974 is an apocalyptic number.

3121974 is an abundant number, since it is smaller than the sum of its proper divisors (3937338).

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

3121974 is a wasteful number, since it uses less digits than its factorization.

3121974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572 (or 7569 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 3121974 is about 1766.9108636261. The cubic root of 3121974 is about 146.1536819232.

It can be divided in two parts, 3121 and 974, that added together give a triangular number (4095 = T₉₀).

The spelling of 3121974 in words is "three million, one hundred twenty-one thousand, nine hundred seventy-four".