3621393 has 12 divisors (see below), whose sum is σ = 5258448. Its totient is φ = 2401560.

The previous prime is 3621379. The next prime is 3621403. The reversal of 3621393 is 3931263.

3621393 is a `hidden beast` number, since 3 + 621 + 39 + 3 = 666.

It is not a de Polignac number, because 3621393 - 2⁶ = 3621329 is a prime.

It is a super-2 number, since 2×3621393² = 26228974520898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3621313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946 + ... + 2852.

It is an arithmetic number, because the mean of its divisors is an integer number (438204).

Almost surely, 2^3621393 is an apocalyptic number.

It is an amenable number.

3621393 is a deficient number, since it is larger than the sum of its proper divisors (1637055).

3621393 is a wasteful number, since it uses less digits than its factorization.

3621393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2121 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 3621393 is about 1902.9957961068. The cubic root of 3621393 is about 153.5648733559.

The spelling of 3621393 in words is "three million, six hundred twenty-one thousand, three hundred ninety-three".