36009949 has 4 divisors (see below), whose sum is σ = 36689436. Its totient is φ = 35330464.

The previous prime is 36009907. The next prime is 36009977. The reversal of 36009949 is 94990063.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28408900 + 7601049 = 5330^2 + 2757^2 .

It is a cyclic number.

It is not a de Polignac number, because 36009949 - 2⁹ = 36009437 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36009749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339664 + ... + 339769.

It is an arithmetic number, because the mean of its divisors is an integer number (9172359).

Almost surely, 2^36009949 is an apocalyptic number.

It is an amenable number.

36009949 is a deficient number, since it is larger than the sum of its proper divisors (679487).

36009949 is an equidigital number, since it uses as much as digits as its factorization.

36009949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679486.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 36009949 is about 6000.8290260596. The cubic root of 36009949 is about 330.2231395639.

The spelling of 36009949 in words is "thirty-six million, nine thousand, nine hundred forty-nine".