36881239 has 4 divisors (see below), whose sum is σ = 36901656. Its totient is φ = 36860824.

The previous prime is 36881237. The next prime is 36881291. The reversal of 36881239 is 93218863.

36881239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 36881239 - 2¹ = 36881237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36881231) 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 3 ways as a sum of consecutive naturals, for example, 7204 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (9225414).

Almost surely, 2^36881239 is an apocalyptic number.

36881239 is a deficient number, since it is larger than the sum of its proper divisors (20417).

36881239 is a wasteful number, since it uses less digits than its factorization.

36881239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20416.

The product of its digits is 62208, while the sum is 40.

The square root of 36881239 is about 6072.9925901486. The cubic root of 36881239 is about 332.8652823146.

The spelling of 36881239 in words is "thirty-six million, eight hundred eighty-one thousand, two hundred thirty-nine".