33986913 has 8 divisors (see below), whose sum is σ = 45566976. Its totient is φ = 22532400.

The previous prime is 33986903. The next prime is 33986921. The reversal of 33986913 is 31968933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33986913 - 2⁸ = 33986657 is a prime.

It is a super-2 number, since 2×33986913² = 2310220510539138, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33986903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30753 + ... + 31838.

It is an arithmetic number, because the mean of its divisors is an integer number (5695872).

Almost surely, 2^33986913 is an apocalyptic number.

It is an amenable number.

33986913 is a deficient number, since it is larger than the sum of its proper divisors (11580063).

33986913 is a wasteful number, since it uses less digits than its factorization.

33986913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62775.

The product of its digits is 104976, while the sum is 42.

The square root of 33986913 is about 5829.8295858455. The cubic root of 33986913 is about 323.9196093037.

The spelling of 33986913 in words is "thirty-three million, nine hundred eighty-six thousand, nine hundred thirteen".