33679930 has 16 divisors (see below), whose sum is σ = 61618824. Its totient is φ = 13250880.

The previous prime is 33679909. The next prime is 33679931. The reversal of 33679930 is 3997633.

It can be written as a sum of positive squares in 4 ways, for example, as 19474569 + 14205361 = 4413^2 + 3769^2 .

It is a super-2 number, since 2×33679930² = 2268675369609800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33679931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26997 + ... + 28216.

Almost surely, 2^33679930 is an apocalyptic number.

33679930 is a deficient number, since it is larger than the sum of its proper divisors (27938894).

33679930 is a wasteful number, since it uses less digits than its factorization.

33679930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55281.

The product of its (nonzero) digits is 91854, while the sum is 40.

The square root of 33679930 is about 5803.4412205174. The cubic root of 33679930 is about 322.9414022721.

The spelling of 33679930 in words is "thirty-three million, six hundred seventy-nine thousand, nine hundred thirty".