36315649 has 4 divisors (see below), whose sum is σ = 36723780. Its totient is φ = 35907520.

The previous prime is 36315619. The next prime is 36315667. The reversal of 36315649 is 94651363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94651363 = 5281 ⋅17923.

It can be written as a sum of positive squares in 2 ways, for example, as 5313025 + 31002624 = 2305^2 + 5568^2 .

It is a cyclic number.

It is not a de Polignac number, because 36315649 - 2²³ = 27927041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36315619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203932 + ... + 204109.

It is an arithmetic number, because the mean of its divisors is an integer number (9180945).

Almost surely, 2^36315649 is an apocalyptic number.

It is an amenable number.

36315649 is a deficient number, since it is larger than the sum of its proper divisors (408131).

36315649 is an equidigital number, since it uses as much as digits as its factorization.

36315649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408130.

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

The square root of 36315649 is about 6026.2466759999. The cubic root of 36315649 is about 331.1549643590.

The spelling of 36315649 in words is "thirty-six million, three hundred fifteen thousand, six hundred forty-nine".