3623820 has 24 divisors (see below), whose sum is σ = 10146864. Its totient is φ = 966336.

The previous prime is 3623803. The next prime is 3623821. The reversal of 3623820 is 283263.

It is not an unprimeable number, because it can be changed into a prime (3623821) 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, 30139 + ... + 30258.

It is an arithmetic number, because the mean of its divisors is an integer number (422786).

Almost surely, 2^3623820 is an apocalyptic number.

3623820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3623820 is an abundant number, since it is smaller than the sum of its proper divisors (6523044).

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

3623820 is a wasteful number, since it uses less digits than its factorization.

3623820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60409 (or 60407 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3623820 is about 1903.6333680622. The cubic root of 3623820 is about 153.5991712737.

The spelling of 3623820 in words is "three million, six hundred twenty-three thousand, eight hundred twenty".