3624581 has 2 divisors, whose sum is σ = 3624582. Its totient is φ = 3624580.

The previous prime is 3624563. The next prime is 3624601. The reversal of 3624581 is 1854263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 1359556 = 1505^2 + 1166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3624581 is a prime.

It is a super-2 number, since 2×3624581² = 26275174851122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3624521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1812290 + 1812291.

It is an arithmetic number, because the mean of its divisors is an integer number (1812291).

Almost surely, 2^3624581 is an apocalyptic number.

It is an amenable number.

3624581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3624581 is an equidigital number, since it uses as much as digits as its factorization.

3624581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 3624581 is about 1903.8332384954. The cubic root of 3624581 is about 153.6099224321.

The spelling of 3624581 in words is "three million, six hundred twenty-four thousand, five hundred eighty-one".