33680005 has 8 divisors (see below), whose sum is σ = 40500000. Its totient is φ = 26888016.

The previous prime is 33679999. The next prime is 33680011. The reversal of 33680005 is 50008633.

It is an interprime number because it is at equal distance from previous prime (33679999) and next prime (33680011).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33680005 is a prime.

It is a super-2 number, since 2×33680005² = 2268685473600050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255 + ... + 9244.

It is an arithmetic number, because the mean of its divisors is an integer number (5062500).

Almost surely, 2^33680005 is an apocalyptic number.

It is an amenable number.

33680005 is a deficient number, since it is larger than the sum of its proper divisors (6819995).

33680005 is a wasteful number, since it uses less digits than its factorization.

33680005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14003.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 33680005 is about 5803.4476821972. The cubic root of 33680005 is about 322.9416419855.

Adding to 33680005 its reverse (50008633), we get a palindrome (83688638).

The spelling of 33680005 in words is "thirty-three million, six hundred eighty thousand, five".