36506631 has 8 divisors (see below), whose sum is σ = 55629184. Its totient is φ = 20860920.

The previous prime is 36506597. The next prime is 36506647. The reversal of 36506631 is 13660563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36506631 - 2¹⁴ = 36490247 is a prime.

It is a super-2 number, since 2×36506631² = 2665468213940322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36506651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869185 + ... + 869226.

It is an arithmetic number, because the mean of its divisors is an integer number (6953648).

Almost surely, 2^36506631 is an apocalyptic number.

36506631 is a deficient number, since it is larger than the sum of its proper divisors (19122553).

36506631 is a wasteful number, since it uses less digits than its factorization.

36506631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738421.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 36506631 is about 6042.0717473396. The cubic root of 36506631 is about 331.7344582800.

The spelling of 36506631 in words is "thirty-six million, five hundred six thousand, six hundred thirty-one".