3581745 has 16 divisors (see below), whose sum is σ = 5811072. Its totient is φ = 1883520.

The previous prime is 3581741. The next prime is 3581749. The reversal of 3581745 is 5471853.

It is an interprime number because it is at equal distance from previous prime (3581741) and next prime (3581749).

It is not a de Polignac number, because 3581745 - 2² = 3581741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3581741) 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, 541 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (363192).

Almost surely, 2^3581745 is an apocalyptic number.

It is an amenable number.

3581745 is a deficient number, since it is larger than the sum of its proper divisors (2229327).

3581745 is a wasteful number, since it uses less digits than its factorization.

3581745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352.

The product of its digits is 16800, while the sum is 33.

The square root of 3581745 is about 1892.5498672426. The cubic root of 3581745 is about 153.0023922049.

The spelling of 3581745 in words is "three million, five hundred eighty-one thousand, seven hundred forty-five".