3621396 has 24 divisors (see below), whose sum is σ = 8817984. Its totient is φ = 1154560.

The previous prime is 3621379. The next prime is 3621403. The reversal of 3621396 is 6931263.

3621396 = 15² + 16² + ... + 221².

It is a happy number.

It is a super-2 number, since 2×3621396² = 26229017977632, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6285 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (367416).

Almost surely, 2^3621396 is an apocalyptic number.

It is an amenable number.

3621396 is an abundant number, since it is smaller than the sum of its proper divisors (5196588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3621396 is a wasteful number, since it uses less digits than its factorization.

3621396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151 (or 13149 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

The square root of 3621396 is about 1902.9965843374. The cubic root of 3621396 is about 153.5649157608.

The spelling of 3621396 in words is "three million, six hundred twenty-one thousand, three hundred ninety-six".