36397872 has 60 divisors (see below), whose sum is σ = 116418640. Its totient is φ = 10399104.

The previous prime is 36397849. The next prime is 36397877. The reversal of 36397872 is 27879363.

It is a happy number.

36397872 is a `hidden beast` number, since 3 + 639 + 7 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×36397872² = 2649610172256768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (36397877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17047 + ... + 19062.

Almost surely, 2^36397872 is an apocalyptic number.

It is an amenable number.

36397872 is an abundant number, since it is smaller than the sum of its proper divisors (80020768).

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

36397872 is a wasteful number, since it uses less digits than its factorization.

36397872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36130 (or 36121 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 36397872 is about 6033.0648927390. The cubic root of 36397872 is about 331.4047008741.

It can be divided in two parts, 3639 and 7872, that added together give a palindrome (11511).

The spelling of 36397872 in words is "thirty-six million, three hundred ninety-seven thousand, eight hundred seventy-two".