33930729 has 24 divisors (see below), whose sum is σ = 56222400. Its totient is φ = 19316448.

The previous prime is 33930679. The next prime is 33930731. The reversal of 33930729 is 92703933.

It is not a de Polignac number, because 33930729 - 2⁷ = 33930601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33930693 and 33930702.

It is not an unprimeable number, because it can be changed into a prime (33930629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19122 + ... + 20820.

It is an arithmetic number, because the mean of its divisors is an integer number (2342600).

Almost surely, 2^33930729 is an apocalyptic number.

It is an amenable number.

33930729 is a deficient number, since it is larger than the sum of its proper divisors (22291671).

33930729 is a wasteful number, since it uses less digits than its factorization.

33930729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 36.

The square root of 33930729 is about 5825.0089270318. The cubic root of 33930729 is about 323.7410196125.

The spelling of 33930729 in words is "thirty-three million, nine hundred thirty thousand, seven hundred twenty-nine".