36368639 has 4 divisors (see below), whose sum is σ = 37622760. Its totient is φ = 35114520.

The previous prime is 36368623. The next prime is 36368659. The reversal of 36368639 is 93686363.

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 36368639 - 2⁴ = 36368623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36368639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36368659) 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, 627017 + ... + 627074.

It is an arithmetic number, because the mean of its divisors is an integer number (9405690).

Almost surely, 2^36368639 is an apocalyptic number.

36368639 is a deficient number, since it is larger than the sum of its proper divisors (1254121).

36368639 is a wasteful number, since it uses less digits than its factorization.

36368639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254120.

The product of its digits is 419904, while the sum is 44.

The square root of 36368639 is about 6030.6416739846. The cubic root of 36368639 is about 331.3159544000.

The spelling of 36368639 in words is "thirty-six million, three hundred sixty-eight thousand, six hundred thirty-nine".