33922729 has 2 divisors, whose sum is σ = 33922730. Its totient is φ = 33922728.

The previous prime is 33922727. The next prime is 33922753. The reversal of 33922729 is 92722933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33085504 + 837225 = 5752^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 33922729 - 2¹ = 33922727 is a prime.

Together with 33922727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33922727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16961364 + 16961365.

It is an arithmetic number, because the mean of its divisors is an integer number (16961365).

Almost surely, 2^33922729 is an apocalyptic number.

It is an amenable number.

33922729 is a deficient number, since it is larger than the sum of its proper divisors (1).

33922729 is an equidigital number, since it uses as much as digits as its factorization.

33922729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 37.

The square root of 33922729 is about 5824.3221923242. The cubic root of 33922729 is about 323.7155743223.

The spelling of 33922729 in words is "thirty-three million, nine hundred twenty-two thousand, seven hundred twenty-nine".