36033681 has 4 divisors (see below), whose sum is σ = 48044912. Its totient is φ = 24022452.

The previous prime is 36033677. The next prime is 36033691. The reversal of 36033681 is 18633063.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36033681 - 2² = 36033677 is a prime.

It is a super-2 number, since 2×36033681² = 2596852332819522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36033691) 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 3 ways as a sum of consecutive naturals, for example, 6005611 + ... + 6005616.

It is an arithmetic number, because the mean of its divisors is an integer number (12011228).

Almost surely, 2^36033681 is an apocalyptic number.

It is an amenable number.

36033681 is a deficient number, since it is larger than the sum of its proper divisors (12011231).

36033681 is a wasteful number, since it uses less digits than its factorization.

36033681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011230.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 36033681 is about 6002.8060938198. The cubic root of 36033681 is about 330.2956670625.

The spelling of 36033681 in words is "thirty-six million, thirty-three thousand, six hundred eighty-one".