36223881 has 4 divisors (see below), whose sum is σ = 48298512. Its totient is φ = 24149252.

The previous prime is 36223877. The next prime is 36223909. The reversal of 36223881 is 18832263.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18832263 = 3 ⋅6277421.

It is a cyclic number.

It is not a de Polignac number, because 36223881 - 2² = 36223877 is a prime.

It is a super-2 number, since 2×36223881² = 2624339109404322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36223181) 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, 6037311 + ... + 6037316.

It is an arithmetic number, because the mean of its divisors is an integer number (12074628).

Almost surely, 2^36223881 is an apocalyptic number.

It is an amenable number.

36223881 is a deficient number, since it is larger than the sum of its proper divisors (12074631).

36223881 is a wasteful number, since it uses less digits than its factorization.

36223881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12074630.

The product of its digits is 13824, while the sum is 33.

The square root of 36223881 is about 6018.6278336511. The cubic root of 36223881 is about 330.8757912094.

It can be divided in two parts, 3622 and 3881, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 36223881 in words is "thirty-six million, two hundred twenty-three thousand, eight hundred eighty-one".