3636363987 has 12 divisors (see below), whose sum is σ = 5265067080. Its totient is φ = 2418454368.

The previous prime is 3636363967. The next prime is 3636363989. The reversal of 3636363987 is 7893636363.

It is a happy number.

It is not a de Polignac number, because 3636363987 - 2²⁴ = 3619586771 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3636363989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478378 + ... + 485919.

It is an arithmetic number, because the mean of its divisors is an integer number (438755590).

Almost surely, 2^3636363987 is an apocalyptic number.

3636363987 is a deficient number, since it is larger than the sum of its proper divisors (1628703093).

3636363987 is a wasteful number, since it uses less digits than its factorization.

3636363987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964722 (or 964719 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 54.

The square root of 3636363987 is about 60302.2718228758. The cubic root of 3636363987 is about 1537.7619690835.

The spelling of 3636363987 in words is "three billion, six hundred thirty-six million, three hundred sixty-three thousand, nine hundred eighty-seven".