3720481 has 4 divisors (see below), whose sum is σ = 3783600. Its totient is φ = 3657364.

The previous prime is 3720469. The next prime is 3720487. The reversal of 3720481 is 1840273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1840273 = 797 ⋅2309.

It is a cyclic number.

It is not a de Polignac number, because 3720481 - 2¹⁵ = 3687713 is a prime.

It is a super-2 number, since 2×3720481² = 27683957742722, which contains 22 as substring.

It is a Duffinian number.

3720481 is a lucky number.

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 3 ways as a sum of consecutive naturals, for example, 31471 + ... + 31588.

It is an arithmetic number, because the mean of its divisors is an integer number (945900).

Almost surely, 2^3720481 is an apocalyptic number.

It is an amenable number.

3720481 is a deficient number, since it is larger than the sum of its proper divisors (63119).

3720481 is an equidigital number, since it uses as much as digits as its factorization.

3720481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63118.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3720481 is about 1928.8548416094. The cubic root of 3720481 is about 154.9528958496.

The spelling of 3720481 in words is "three million, seven hundred twenty thousand, four hundred eighty-one".