3620856 has 16 divisors (see below), whose sum is σ = 9052200. Its totient is φ = 1206944.

The previous prime is 3620843. The next prime is 3620879. The reversal of 3620856 is 6580263.

It is a super-2 number, since 2×3620856² = 26221196345472, 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 3 ways as a sum of consecutive naturals, for example, 75411 + ... + 75458.

Almost surely, 2^3620856 is an apocalyptic number.

It is an amenable number.

3620856 is an abundant number, since it is smaller than the sum of its proper divisors (5431344).

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

3620856 is a wasteful number, since it uses less digits than its factorization.

3620856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150878 (or 150874 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 3620856 is about 1902.8546975531. The cubic root of 3620856 is about 153.5572825003.

The spelling of 3620856 in words is "three million, six hundred twenty thousand, eight hundred fifty-six".