33199985 has 32 divisors (see below), whose sum is σ = 49496832. Its totient is φ = 20816640.

The previous prime is 33199981. The next prime is 33200023. The reversal of 33199985 is 58999133.

It is not a de Polignac number, because 33199985 - 2² = 33199981 is a prime.

It is a super-2 number, since 2×33199985² = 2204478008000450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33199981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59327 + ... + 59883.

It is an arithmetic number, because the mean of its divisors is an integer number (1546776).

Almost surely, 2^33199985 is an apocalyptic number.

33199985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33199985 is a deficient number, since it is larger than the sum of its proper divisors (16296847).

33199985 is a wasteful number, since it uses less digits than its factorization.

33199985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its digits is 262440, while the sum is 47.

The square root of 33199985 is about 5761.9428147110. The cubic root of 33199985 is about 321.4000666551.

The spelling of 33199985 in words is "thirty-three million, one hundred ninety-nine thousand, nine hundred eighty-five".