3122906 has 4 divisors (see below), whose sum is σ = 4684362. Its totient is φ = 1561452.

The previous prime is 3122893. The next prime is 3122927. The reversal of 3122906 is 6092213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6092213 = 31 ⋅196523.

It can be written as a sum of positive squares in only one way, i.e., 2374681 + 748225 = 1541^2 + 865^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780725 + ... + 780728.

Almost surely, 2^3122906 is an apocalyptic number.

3122906 is a deficient number, since it is larger than the sum of its proper divisors (1561456).

3122906 is a wasteful number, since it uses less digits than its factorization.

3122906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561455.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3122906 is about 1767.1745810757. The cubic root of 3122906 is about 146.1682241839.

The spelling of 3122906 in words is "three million, one hundred twenty-two thousand, nine hundred six".