33068731 has 2 divisors, whose sum is σ = 33068732. Its totient is φ = 33068730.

The previous prime is 33068719. The next prime is 33068741. The reversal of 33068731 is 13786033.

It is a strong prime.

It is an emirp because it is prime and its reverse (13786033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33068731 - 2⁵ = 33068699 is a prime.

It is a super-2 number, since 2×33068731² = 2187081939900722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33068693 and 33068702.

It is not a weakly prime, because it can be changed into another prime (33068741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16534365 + 16534366.

It is an arithmetic number, because the mean of its divisors is an integer number (16534366).

Almost surely, 2^33068731 is an apocalyptic number.

33068731 is a deficient number, since it is larger than the sum of its proper divisors (1).

33068731 is an equidigital number, since it uses as much as digits as its factorization.

33068731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 33068731 is about 5750.5418005611. The cubic root of 33068731 is about 320.9759624602.

The spelling of 33068731 in words is "thirty-three million, sixty-eight thousand, seven hundred thirty-one".