34640999 has 4 divisors (see below), whose sum is σ = 34656336. Its totient is φ = 34625664.

The previous prime is 34640989. The next prime is 34641007. The reversal of 34640999 is 99904643.

It is a happy number.

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 34640999 - 2²⁰ = 33592423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640939) 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, 3539 + ... + 9044.

It is an arithmetic number, because the mean of its divisors is an integer number (8664084).

Almost surely, 2^34640999 is an apocalyptic number.

34640999 is a deficient number, since it is larger than the sum of its proper divisors (15337).

34640999 is a wasteful number, since it uses less digits than its factorization.

34640999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15336.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 34640999 is about 5885.6604557178. The cubic root of 34640999 is about 325.9843889547.

The spelling of 34640999 in words is "thirty-four million, six hundred forty thousand, nine hundred ninety-nine".