3723820 has 12 divisors (see below), whose sum is σ = 7820064. Its totient is φ = 1489520.

The previous prime is 3723809. The next prime is 3723847. The reversal of 3723820 is 283273.

It is a happy number.

3723820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 93076 + ... + 93115.

It is an arithmetic number, because the mean of its divisors is an integer number (651672).

Almost surely, 2^3723820 is an apocalyptic number.

It is an amenable number.

3723820 is an abundant number, since it is smaller than the sum of its proper divisors (4096244).

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

3723820 is a wasteful number, since it uses less digits than its factorization.

3723820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186200 (or 186198 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3723820 is about 1929.7201869701. The cubic root of 3723820 is about 154.9992369022. Note that the first 3 decimals are identical.

The spelling of 3723820 in words is "three million, seven hundred twenty-three thousand, eight hundred twenty".