68428799 has 8 divisors (see below), whose sum is σ = 70392720. Its totient is φ = 66470976.

The previous prime is 68428793. The next prime is 68428819. The reversal of 68428799 is 99782486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68428799 - 2¹² = 68424703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 68428799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68428793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30707 + ... + 32859.

It is an arithmetic number, because the mean of its divisors is an integer number (8799090).

Almost surely, 2^68428799 is an apocalyptic number.

68428799 is a deficient number, since it is larger than the sum of its proper divisors (1963921).

68428799 is a wasteful number, since it uses less digits than its factorization.

68428799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049.

The product of its digits is 1741824, while the sum is 53.

The square root of 68428799 is about 8272.1701505711. The cubic root of 68428799 is about 409.0216590137.

The spelling of 68428799 in words is "sixty-eight million, four hundred twenty-eight thousand, seven hundred ninety-nine".