3090321 has 24 divisors (see below), whose sum is σ = 4897256. Its totient is φ = 1866240.

The previous prime is 3090319. The next prime is 3090337. The reversal of 3090321 is 1230903.

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 2772225 = 564^2 + 1665^2 .

It is not a de Polignac number, because 3090321 - 2¹ = 3090319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3090294 and 3090303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3090301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6921 + ... + 7353.

Almost surely, 2^3090321 is an apocalyptic number.

It is an amenable number.

3090321 is a deficient number, since it is larger than the sum of its proper divisors (1806935).

3090321 is a wasteful number, since it uses less digits than its factorization.

3090321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3090321 is about 1757.9308860134. The cubic root of 3090321 is about 145.6580632497.

The spelling of 3090321 in words is "three million, ninety thousand, three hundred twenty-one".