36438841 has 2 divisors, whose sum is σ = 36438842. Its totient is φ = 36438840.

The previous prime is 36438839. The next prime is 36438863. The reversal of 36438841 is 14883463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36348841 + 90000 = 6029^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 36438841 - 2¹ = 36438839 is a prime.

Together with 36438839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 36438841.

It is not a weakly prime, because it can be changed into another prime (36438041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18219420 + 18219421.

It is an arithmetic number, because the mean of its divisors is an integer number (18219421).

Almost surely, 2^36438841 is an apocalyptic number.

It is an amenable number.

36438841 is a deficient number, since it is larger than the sum of its proper divisors (1).

36438841 is an equidigital number, since it uses as much as digits as its factorization.

36438841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 37.

The square root of 36438841 is about 6036.4593098935. The cubic root of 36438841 is about 331.5289959448.

The spelling of 36438841 in words is "thirty-six million, four hundred thirty-eight thousand, eight hundred forty-one".