33930985 has 24 divisors (see below), whose sum is σ = 45652608. Its totient is φ = 24009600.

The previous prime is 33930977. The next prime is 33930989. The reversal of 33930985 is 58903933.

It is not a de Polignac number, because 33930985 - 2³ = 33930977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33930989) 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, 92272 + ... + 92638.

It is an arithmetic number, because the mean of its divisors is an integer number (1902192).

Almost surely, 2^33930985 is an apocalyptic number.

It is an amenable number.

33930985 is a deficient number, since it is larger than the sum of its proper divisors (11721623).

33930985 is a wasteful number, since it uses less digits than its factorization.

33930985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 33930985 is about 5825.0309012056. The cubic root of 33930985 is about 323.7418337957.

The spelling of 33930985 in words is "thirty-three million, nine hundred thirty thousand, nine hundred eighty-five".