36687939 has 4 divisors (see below), whose sum is σ = 48917256. Its totient is φ = 24458624.

The previous prime is 36687923. The next prime is 36687941. The reversal of 36687939 is 93978663.

It is a happy number.

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 36687939 - 2⁴ = 36687923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36687891 and 36687900.

It is not an unprimeable number, because it can be changed into a prime (36686939) 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, 6114654 + ... + 6114659.

It is an arithmetic number, because the mean of its divisors is an integer number (12229314).

Almost surely, 2^36687939 is an apocalyptic number.

36687939 is a deficient number, since it is larger than the sum of its proper divisors (12229317).

36687939 is a wasteful number, since it uses less digits than its factorization.

36687939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12229316.

The product of its digits is 1469664, while the sum is 51.

The square root of 36687939 is about 6057.0569586227. The cubic root of 36687939 is about 332.2827314079.

The spelling of 36687939 in words is "thirty-six million, six hundred eighty-seven thousand, nine hundred thirty-nine".