68999422 has 4 divisors (see below), whose sum is σ = 103499136. Its totient is φ = 34499710.

The previous prime is 68999419. The next prime is 68999423. The reversal of 68999422 is 22499986.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68999423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17249854 + ... + 17249857.

It is an arithmetic number, because the mean of its divisors is an integer number (25874784).

Almost surely, 2^68999422 is an apocalyptic number.

68999422 is a deficient number, since it is larger than the sum of its proper divisors (34499714).

68999422 is a wasteful number, since it uses less digits than its factorization.

68999422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34499713.

The product of its digits is 559872, while the sum is 49.

The square root of 68999422 is about 8306.5890713337. The cubic root of 68999422 is about 410.1554476989.

The spelling of 68999422 in words is "sixty-eight million, nine hundred ninety-nine thousand, four hundred twenty-two".