68428489 has 8 divisors (see below), whose sum is σ = 69258240. Its totient is φ = 67603536.

The previous prime is 68428483. The next prime is 68428511. The reversal of 68428489 is 98482486.

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 68428489 - 2⁷ = 68428361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68428483) 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, 33162 + ... + 35164.

It is an arithmetic number, because the mean of its divisors is an integer number (8657280).

Almost surely, 2^68428489 is an apocalyptic number.

It is an amenable number.

68428489 is a deficient number, since it is larger than the sum of its proper divisors (829751).

68428489 is a wasteful number, since it uses less digits than its factorization.

68428489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399.

The product of its digits is 884736, while the sum is 49.

The square root of 68428489 is about 8272.1514130243. The cubic root of 68428489 is about 409.0210413551.

The spelling of 68428489 in words is "sixty-eight million, four hundred twenty-eight thousand, four hundred eighty-nine".