33889998 has 8 divisors (see below), whose sum is σ = 67780008. Its totient is φ = 11296664.

The previous prime is 33889991. The next prime is 33890011. The reversal of 33889998 is 89998833.

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

33889998 is an admirable number.

It is a super-2 number, since 2×33889998² = 2297063928880008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33889991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2824161 + ... + 2824172.

It is an arithmetic number, because the mean of its divisors is an integer number (8472501).

Almost surely, 2^33889998 is an apocalyptic number.

33889998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33889998 is a wasteful number, since it uses less digits than its factorization.

33889998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648338.

The product of its digits is 3359232, while the sum is 57.

The square root of 33889998 is about 5821.5116593545. The cubic root of 33889998 is about 323.6114264116.

The spelling of 33889998 in words is "thirty-three million, eight hundred eighty-nine thousand, nine hundred ninety-eight".