33238939 has 2 divisors, whose sum is σ = 33238940. Its totient is φ = 33238938.

The previous prime is 33238921. The next prime is 33238949. The reversal of 33238939 is 93983233.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33238939 is a prime.

It is a super-2 number, since 2×33238939² = 2209654131691442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33238949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16619469 + 16619470.

It is an arithmetic number, because the mean of its divisors is an integer number (16619470).

Almost surely, 2^33238939 is an apocalyptic number.

33238939 is a deficient number, since it is larger than the sum of its proper divisors (1).

33238939 is an equidigital number, since it uses as much as digits as its factorization.

33238939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 40.

The square root of 33238939 is about 5765.3221072200. The cubic root of 33238939 is about 321.5257185675.

The spelling of 33238939 in words is "thirty-three million, two hundred thirty-eight thousand, nine hundred thirty-nine".