33968231 has 4 divisors (see below), whose sum is σ = 37056264. Its totient is φ = 30880200.

The previous prime is 33968203. The next prime is 33968243. The reversal of 33968231 is 13286933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13286933 = 11 ⋅1207903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33968231 is a prime.

It is a super-2 number, since 2×33968231² = 2307681434538722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33968191 and 33968200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33968201) 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, 1544000 + ... + 1544021.

It is an arithmetic number, because the mean of its divisors is an integer number (9264066).

Almost surely, 2^33968231 is an apocalyptic number.

33968231 is a deficient number, since it is larger than the sum of its proper divisors (3088033).

33968231 is a wasteful number, since it uses less digits than its factorization.

33968231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088032.

The product of its digits is 23328, while the sum is 35.

The square root of 33968231 is about 5828.2270889182. The cubic root of 33968231 is about 323.8602474814.

The spelling of 33968231 in words is "thirty-three million, nine hundred sixty-eight thousand, two hundred thirty-one".