68822399 has 4 divisors (see below), whose sum is σ = 68958120. Its totient is φ = 68686680.

The previous prime is 68822393. The next prime is 68822401. The reversal of 68822399 is 99322886.

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 68822399 - 2¹² = 68818303 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 (68822393) 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, 67097 + ... + 68114.

It is an arithmetic number, because the mean of its divisors is an integer number (17239530).

Almost surely, 2^68822399 is an apocalyptic number.

68822399 is a deficient number, since it is larger than the sum of its proper divisors (135721).

68822399 is a wasteful number, since it uses less digits than its factorization.

68822399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135720.

The product of its digits is 373248, while the sum is 47.

The square root of 68822399 is about 8295.9266510740. The cubic root of 68822399 is about 409.8043861626.

The spelling of 68822399 in words is "sixty-eight million, eight hundred twenty-two thousand, three hundred ninety-nine".