33072839 has 2 divisors, whose sum is σ = 33072840. Its totient is φ = 33072838.

The previous prime is 33072817. The next prime is 33072841. The reversal of 33072839 is 93827033.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33072839 - 2¹² = 33068743 is a prime.

It is a Sophie Germain prime.

Together with 33072841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 33072799 and 33072808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33072859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16536419 + 16536420.

It is an arithmetic number, because the mean of its divisors is an integer number (16536420).

Almost surely, 2^33072839 is an apocalyptic number.

33072839 is a deficient number, since it is larger than the sum of its proper divisors (1).

33072839 is an equidigital number, since it uses as much as digits as its factorization.

33072839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 33072839 is about 5750.8989732041. The cubic root of 33072839 is about 320.9892531089.

The spelling of 33072839 in words is "thirty-three million, seventy-two thousand, eight hundred thirty-nine".