3123966 has 16 divisors (see below), whose sum is σ = 6272784. Its totient is φ = 1037184.

The previous prime is 3123959. The next prime is 3123973. The reversal of 3123966 is 6693213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3123959) and next prime (3123973).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (392049).

Almost surely, 2^3123966 is an apocalyptic number.

3123966 is an abundant number, since it is smaller than the sum of its proper divisors (3148818).

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

3123966 is a wasteful number, since it uses less digits than its factorization.

3123966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its digits is 5832, while the sum is 30.

The square root of 3123966 is about 1767.4744694054. The cubic root of 3123966 is about 146.1847601487.

It can be divided in two parts, 312 and 3966, that added together give a triangular number (4278 = T₉₂).

The spelling of 3123966 in words is "three million, one hundred twenty-three thousand, nine hundred sixty-six".