3720801 has 16 divisors (see below), whose sum is σ = 5709824. Its totient is φ = 2111184.

The previous prime is 3720797. The next prime is 3720811. The reversal of 3720801 is 1080273.

It is not a de Polignac number, because 3720801 - 2² = 3720797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2880 + ... + 3966.

It is an arithmetic number, because the mean of its divisors is an integer number (356864).

Almost surely, 2^3720801 is an apocalyptic number.

It is an amenable number.

3720801 is a deficient number, since it is larger than the sum of its proper divisors (1989023).

3720801 is a wasteful number, since it uses less digits than its factorization.

3720801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 3720801 is about 1928.9377905988. The cubic root of 3720801 is about 154.9573382416.

The spelling of 3720801 in words is "three million, seven hundred twenty thousand, eight hundred one".