3720489 has 16 divisors (see below), whose sum is σ = 5136384. Its totient is φ = 2394000.

The previous prime is 3720487. The next prime is 3720491. The reversal of 3720489 is 9840273.

It is an interprime number because it is at equal distance from previous prime (3720487) and next prime (3720491).

It is not a de Polignac number, because 3720489 - 2¹ = 3720487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3720487) 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, 19384 + ... + 19574.

It is an arithmetic number, because the mean of its divisors is an integer number (321024).

Almost surely, 2^3720489 is an apocalyptic number.

It is an amenable number.

3720489 is a deficient number, since it is larger than the sum of its proper divisors (1415895).

3720489 is a wasteful number, since it uses less digits than its factorization.

3720489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3720489 is about 1928.8569153776. The cubic root of 3720489 is about 154.9530069125.

The spelling of 3720489 in words is "three million, seven hundred twenty thousand, four hundred eighty-nine".