36686413 has 2 divisors, whose sum is σ = 36686414. Its totient is φ = 36686412.

The previous prime is 36686401. The next prime is 36686477. The reversal of 36686413 is 31468663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23011209 + 13675204 = 4797^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 36686413 - 2⁵ = 36686381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36686213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18343206 + 18343207.

It is an arithmetic number, because the mean of its divisors is an integer number (18343207).

Almost surely, 2^36686413 is an apocalyptic number.

It is an amenable number.

36686413 is a deficient number, since it is larger than the sum of its proper divisors (1).

36686413 is an equidigital number, since it uses as much as digits as its factorization.

36686413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 36686413 is about 6056.9309885453. The cubic root of 36686413 is about 332.2781243490.

The spelling of 36686413 in words is "thirty-six million, six hundred eighty-six thousand, four hundred thirteen".