3123669 has 4 divisors (see below), whose sum is σ = 4164896. Its totient is φ = 2082444.

The previous prime is 3123643. The next prime is 3123671. The reversal of 3123669 is 9663213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3123669 - 2⁷ = 3123541 is a prime.

It is a super-2 number, since 2×3123669² = 19514616043122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520609 + ... + 520614.

It is an arithmetic number, because the mean of its divisors is an integer number (1041224).

Almost surely, 2^3123669 is an apocalyptic number.

It is an amenable number.

3123669 is a deficient number, since it is larger than the sum of its proper divisors (1041227).

3123669 is a wasteful number, since it uses less digits than its factorization.

3123669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041226.

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

The square root of 3123669 is about 1767.3904492217. The cubic root of 3123669 is about 146.1801273358.

The spelling of 3123669 in words is "three million, one hundred twenty-three thousand, six hundred sixty-nine".