34009999 has 4 divisors (see below), whose sum is σ = 34733664. Its totient is φ = 33286336.

The previous prime is 34009991. The next prime is 34010023. The reversal of 34009999 is 99990043.

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 34009999 - 2³ = 34009991 is a prime.

It is a Duffinian number.

34009999 is a modest number, since divided by 9999 gives 3400 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34009991) 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, 361762 + ... + 361855.

It is an arithmetic number, because the mean of its divisors is an integer number (8683416).

Almost surely, 2^34009999 is an apocalyptic number.

34009999 is a deficient number, since it is larger than the sum of its proper divisors (723665).

34009999 is an equidigital number, since it uses as much as digits as its factorization.

34009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723664.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 34009999 is about 5831.8092389926. The cubic root of 34009999 is about 323.9929347390.

The spelling of 34009999 in words is "thirty-four million, nine thousand, nine hundred ninety-nine".