36539946 has 12 divisors (see below), whose sum is σ = 79169922. Its totient is φ = 12179976.

The previous prime is 36539911. The next prime is 36539947. The reversal of 36539946 is 64993563.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33767721 + 2772225 = 5811^2 + 1665^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36539947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1014981 + ... + 1015016.

Almost surely, 2^36539946 is an apocalyptic number.

36539946 is an abundant number, since it is smaller than the sum of its proper divisors (42629976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36539946 is a wasteful number, since it uses less digits than its factorization.

36539946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030005 (or 2030002 counting only the distinct ones).

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

The square root of 36539946 is about 6044.8280372563. The cubic root of 36539946 is about 331.8353383397.

The spelling of 36539946 in words is "thirty-six million, five hundred thirty-nine thousand, nine hundred forty-six".