3621863 has 8 divisors (see below), whose sum is σ = 4152480. Its totient is φ = 3094560.

The previous prime is 3621857. The next prime is 3621881. The reversal of 3621863 is 3681263.

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

It is not a de Polignac number, because 3621863 - 2¹⁰ = 3620839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621803) 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, 2333 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (519060).

Almost surely, 2^3621863 is an apocalyptic number.

3621863 is a deficient number, since it is larger than the sum of its proper divisors (530617).

3621863 is a wasteful number, since it uses less digits than its factorization.

3621863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657.

The product of its digits is 5184, while the sum is 29.

The square root of 3621863 is about 1903.1192816006. The cubic root of 3621863 is about 153.5715165057.

The spelling of 3621863 in words is "three million, six hundred twenty-one thousand, eight hundred sixty-three".