36603631 has 4 divisors (see below), whose sum is σ = 36652000. Its totient is φ = 36555264.

The previous prime is 36603613. The next prime is 36603661. The reversal of 36603631 is 13630663.

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 36603631 - 2¹¹ = 36601583 is a prime.

It is a super-2 number, since 2×36603631² = 2679651604768322, which contains 22 as substring.

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 36603631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36603661) 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, 23031 + ... + 24568.

It is an arithmetic number, because the mean of its divisors is an integer number (9163000).

Almost surely, 2^36603631 is an apocalyptic number.

36603631 is a deficient number, since it is larger than the sum of its proper divisors (48369).

36603631 is an equidigital number, since it uses as much as digits as its factorization.

36603631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48368.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 36603631 is about 6050.0934703523. The cubic root of 36603631 is about 332.0280102898.

The spelling of 36603631 in words is "thirty-six million, six hundred three thousand, six hundred thirty-one".