3223639 has 4 divisors (see below), whose sum is σ = 3232080. Its totient is φ = 3215200.

The previous prime is 3223631. The next prime is 3223663. The reversal of 3223639 is 9363223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3223639 - 2³ = 3223631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223631) 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, 3619 + ... + 4420.

It is an arithmetic number, because the mean of its divisors is an integer number (808020).

Almost surely, 2^3223639 is an apocalyptic number.

3223639 is a deficient number, since it is larger than the sum of its proper divisors (8441).

3223639 is an equidigital number, since it uses as much as digits as its factorization.

3223639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8440.

The product of its digits is 5832, while the sum is 28.

The square root of 3223639 is about 1795.4495258848. The cubic root of 3223639 is about 147.7232318378.

The spelling of 3223639 in words is "three million, two hundred twenty-three thousand, six hundred thirty-nine".