3228431 has 4 divisors (see below), whose sum is σ = 3232632. Its totient is φ = 3224232.

The previous prime is 3228427. The next prime is 3228437. The reversal of 3228431 is 1348223.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3228431 - 2² = 3228427 is a prime.

It is a super-2 number, since 2×3228431² = 20845533443522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3228397 and 3228406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228437) 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, 581 + ... + 2606.

It is an arithmetic number, because the mean of its divisors is an integer number (808158).

Almost surely, 2^3228431 is an apocalyptic number.

3228431 is a deficient number, since it is larger than the sum of its proper divisors (4201).

3228431 is a wasteful number, since it uses less digits than its factorization.

3228431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200.

The product of its digits is 1152, while the sum is 23.

The square root of 3228431 is about 1796.7835150624. The cubic root of 3228431 is about 147.7963933852.

The spelling of 3228431 in words is "three million, two hundred twenty-eight thousand, four hundred thirty-one".