36436591 has 2 divisors, whose sum is σ = 36436592. Its totient is φ = 36436590.

The previous prime is 36436553. The next prime is 36436607. The reversal of 36436591 is 19563463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36436591 - 2⁹ = 36436079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36436591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36436291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18218295 + 18218296.

It is an arithmetic number, because the mean of its divisors is an integer number (18218296).

Almost surely, 2^36436591 is an apocalyptic number.

36436591 is a deficient number, since it is larger than the sum of its proper divisors (1).

36436591 is an equidigital number, since it uses as much as digits as its factorization.

36436591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 36436591 is about 6036.2729394884. The cubic root of 36436591 is about 331.5221721310.

The spelling of 36436591 in words is "thirty-six million, four hundred thirty-six thousand, five hundred ninety-one".