36621172 has 24 divisors (see below), whose sum is σ = 73535616. Its totient is φ = 15631968.

The previous prime is 36621163. The next prime is 36621173. The reversal of 36621172 is 27112663.

It is a super-2 number, since 2×36621172² = 2682220477307168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 36621172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36621173) 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, 4878 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (3063984).

Almost surely, 2^36621172 is an apocalyptic number.

It is an amenable number.

36621172 is an abundant number, since it is smaller than the sum of its proper divisors (36914444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36621172 is a wasteful number, since it uses less digits than its factorization.

36621172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247 (or 5245 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 36621172 is about 6051.5429437458. The cubic root of 36621172 is about 332.0810393936.

The spelling of 36621172 in words is "thirty-six million, six hundred twenty-one thousand, one hundred seventy-two".