36645939 has 30 divisors (see below), whose sum is σ = 60187820. Its totient is φ = 22203720.

The previous prime is 36645929. The next prime is 36645941. The reversal of 36645939 is 93954663.

It is a happy number.

36645939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36645939 - 2⁵ = 36645907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36645894 and 36645903.

It is not an unprimeable number, because it can be changed into a prime (36645919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7932 + ... + 11670.

Almost surely, 2^36645939 is an apocalyptic number.

36645939 is a deficient number, since it is larger than the sum of its proper divisors (23541881).

36645939 is a wasteful number, since it uses less digits than its factorization.

36645939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773 (or 3753 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The square root of 36645939 is about 6053.5889354993. The cubic root of 36645939 is about 332.1558849654.

The spelling of 36645939 in words is "thirty-six million, six hundred forty-five thousand, nine hundred thirty-nine".