36417581 has 2 divisors, whose sum is σ = 36417582. Its totient is φ = 36417580.

The previous prime is 36417571. The next prime is 36417593. The reversal of 36417581 is 18571463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25593481 + 10824100 = 5059^2 + 3290^2 .

It is a cyclic number.

It is not a de Polignac number, because 36417581 - 2¹⁸ = 36155437 is a prime.

It is a super-2 number, since 2×36417581² = 2652480411783122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36417541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18208790 + 18208791.

It is an arithmetic number, because the mean of its divisors is an integer number (18208791).

Almost surely, 2^36417581 is an apocalyptic number.

It is an amenable number.

36417581 is a deficient number, since it is larger than the sum of its proper divisors (1).

36417581 is an equidigital number, since it uses as much as digits as its factorization.

36417581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 36417581 is about 6034.6980868971. The cubic root of 36417581 is about 331.4645072703.

The spelling of 36417581 in words is "thirty-six million, four hundred seventeen thousand, five hundred eighty-one".