36091649 has 4 divisors (see below), whose sum is σ = 39372720. Its totient is φ = 32810580.

The previous prime is 36091633. The next prime is 36091651. The reversal of 36091649 is 94619063.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36091649 - 2⁴ = 36091633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36091609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640519 + ... + 1640540.

It is an arithmetic number, because the mean of its divisors is an integer number (9843180).

Almost surely, 2^36091649 is an apocalyptic number.

It is an amenable number.

36091649 is a deficient number, since it is larger than the sum of its proper divisors (3281071).

36091649 is a wasteful number, since it uses less digits than its factorization.

36091649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281070.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 36091649 is about 6007.6325619998. The cubic root of 36091649 is about 330.4726896029.

The spelling of 36091649 in words is "thirty-six million, ninety-one thousand, six hundred forty-nine".