3228731 has 8 divisors (see below), whose sum is σ = 3617904. Its totient is φ = 2855520.

The previous prime is 3228713. The next prime is 3228733. The reversal of 3228731 is 1378223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3228731 - 2¹⁴ = 3212347 is a prime.

It is a super-2 number, since 2×3228731² = 20849407740722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3228731.

It is not an unprimeable number, because it can be changed into a prime (3228733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560 + ... + 4373.

It is an arithmetic number, because the mean of its divisors is an integer number (452238).

Almost surely, 2^3228731 is an apocalyptic number.

3228731 is a deficient number, since it is larger than the sum of its proper divisors (389173).

3228731 is a wasteful number, since it uses less digits than its factorization.

3228731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981.

The product of its digits is 2016, while the sum is 26.

The square root of 3228731 is about 1796.8669956343. The cubic root of 3228731 is about 147.8009712070.

The spelling of 3228731 in words is "three million, two hundred twenty-eight thousand, seven hundred thirty-one".