68830999 has 4 divisors (see below), whose sum is σ = 68848936. Its totient is φ = 68813064.

The previous prime is 68830967. The next prime is 68831027. The reversal of 68830999 is 99903886.

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 68830999 - 2⁵ = 68830967 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 (68830799) 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, 624 + ... + 11749.

It is an arithmetic number, because the mean of its divisors is an integer number (17212234).

Almost surely, 2^68830999 is an apocalyptic number.

68830999 is a deficient number, since it is larger than the sum of its proper divisors (17937).

68830999 is a wasteful number, since it uses less digits than its factorization.

68830999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 68830999 is about 8296.4449615483. Note that the first 3 decimals coincide. The cubic root of 68830999 is about 409.8214550771.

The spelling of 68830999 in words is "sixty-eight million, eight hundred thirty thousand, nine hundred ninety-nine".