67828999 has 8 divisors (see below), whose sum is σ = 80192160. Its totient is φ = 56134176.

The previous prime is 67828973. The next prime is 67829033. The reversal of 67828999 is 99982876.

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

It is not a de Polignac number, because 67828999 - 2²¹ = 65731847 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 (67828919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166864 + ... + 167269.

It is an arithmetic number, because the mean of its divisors is an integer number (10024020).

Almost surely, 2^67828999 is an apocalyptic number.

67828999 is a deficient number, since it is larger than the sum of its proper divisors (12363161).

67828999 is a wasteful number, since it uses less digits than its factorization.

67828999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334169.

The product of its digits is 3919104, while the sum is 58.

The square root of 67828999 is about 8235.8362659781. The cubic root of 67828999 is about 407.8230822570.

The spelling of 67828999 in words is "sixty-seven million, eight hundred twenty-eight thousand, nine hundred ninety-nine".