33640099 has 4 divisors (see below), whose sum is σ = 35102736. Its totient is φ = 32177464.

The previous prime is 33640081. The next prime is 33640111. The reversal of 33640099 is 99004633.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33640099 - 2¹³ = 33631907 is a prime.

It is a super-2 number, since 2×33640099² = 2263312521459602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33640069) 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, 731284 + ... + 731329.

It is an arithmetic number, because the mean of its divisors is an integer number (8775684).

Almost surely, 2^33640099 is an apocalyptic number.

33640099 is a deficient number, since it is larger than the sum of its proper divisors (1462637).

33640099 is a wasteful number, since it uses less digits than its factorization.

33640099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462636.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 33640099 is about 5800.0085344765. The cubic root of 33640099 is about 322.8140449895.

The spelling of 33640099 in words is "thirty-three million, six hundred forty thousand, ninety-nine".