33693139 has 2 divisors, whose sum is σ = 33693140. Its totient is φ = 33693138.

The previous prime is 33693119. The next prime is 33693173. The reversal of 33693139 is 93139633.

It is a weak prime.

It is an emirp because it is prime and its reverse (93139633) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33693139 is a prime.

It is a super-2 number, since 2×33693139² = 2270455231346642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 33693098 and 33693107.

It is not a weakly prime, because it can be changed into another prime (33693109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16846569 + 16846570.

It is an arithmetic number, because the mean of its divisors is an integer number (16846570).

Almost surely, 2^33693139 is an apocalyptic number.

33693139 is a deficient number, since it is larger than the sum of its proper divisors (1).

33693139 is an equidigital number, since it uses as much as digits as its factorization.

33693139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 37.

The square root of 33693139 is about 5804.5791406440. The cubic root of 33693139 is about 322.9836151018.

The spelling of 33693139 in words is "thirty-three million, six hundred ninety-three thousand, one hundred thirty-nine".