3720563 has 16 divisors (see below), whose sum is σ = 4680960. Its totient is φ = 2872800.

The previous prime is 3720553. The next prime is 3720571. The reversal of 3720563 is 3650273.

It is not a de Polignac number, because 3720563 - 2¹⁰ = 3719539 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720553) 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, 16133 + ... + 16361.

It is an arithmetic number, because the mean of its divisors is an integer number (292560).

Almost surely, 2^3720563 is an apocalyptic number.

3720563 is a deficient number, since it is larger than the sum of its proper divisors (960397).

3720563 is a wasteful number, since it uses less digits than its factorization.

3720563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 3720563 is about 1928.8760976278. The cubic root of 3720563 is about 154.9540342369.

The spelling of 3720563 in words is "three million, seven hundred twenty thousand, five hundred sixty-three".