33299947 has 2 divisors, whose sum is σ = 33299948. Its totient is φ = 33299946.

The previous prime is 33299941. The next prime is 33299969. The reversal of 33299947 is 74999233.

It is a weak prime.

It is an emirp because it is prime and its reverse (74999233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33299947 - 2³ = 33299939 is a prime.

It is a super-2 number, since 2×33299947² = 2217772940405618, 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 = 33299897 and 33299906.

It is not a weakly prime, because it can be changed into another prime (33299941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16649973 + 16649974.

It is an arithmetic number, because the mean of its divisors is an integer number (16649974).

Almost surely, 2^33299947 is an apocalyptic number.

33299947 is a deficient number, since it is larger than the sum of its proper divisors (1).

33299947 is an equidigital number, since it uses as much as digits as its factorization.

33299947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 46.

The square root of 33299947 is about 5770.6106262682. The cubic root of 33299947 is about 321.7223118078.

The spelling of 33299947 in words is "thirty-three million, two hundred ninety-nine thousand, nine hundred forty-seven".