3621398 has 16 divisors (see below), whose sum is σ = 5990544. Its totient is φ = 1628160.

The previous prime is 3621379. The next prime is 3621403. The reversal of 3621398 is 8931263.

It is a super-2 number, since 2×3621398² = 26229046948808, which contains 22 as substring.

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, 1286 + ... + 2982.

It is an arithmetic number, because the mean of its divisors is an integer number (374409).

Almost surely, 2^3621398 is an apocalyptic number.

3621398 is a deficient number, since it is larger than the sum of its proper divisors (2369146).

3621398 is a wasteful number, since it uses less digits than its factorization.

3621398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807.

The product of its digits is 7776, while the sum is 32.

The square root of 3621398 is about 1902.9971098244. The cubic root of 3621398 is about 153.5649440307.

The spelling of 3621398 in words is "three million, six hundred twenty-one thousand, three hundred ninety-eight".