68210489 has 8 divisors (see below), whose sum is σ = 70704768. Its totient is φ = 65759760.

The previous prime is 68210473. The next prime is 68210507. The reversal of 68210489 is 98401286.

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 68210489 - 2⁴ = 68210473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68210459) 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, 7682 + ... + 13979.

It is an arithmetic number, because the mean of its divisors is an integer number (8838096).

Almost surely, 2^68210489 is an apocalyptic number.

It is an amenable number.

68210489 is a deficient number, since it is larger than the sum of its proper divisors (2494279).

68210489 is a wasteful number, since it uses less digits than its factorization.

68210489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21775.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 68210489 is about 8258.9641602322. The cubic root of 68210489 is about 408.5862251673.

The spelling of 68210489 in words is "sixty-eight million, two hundred ten thousand, four hundred eighty-nine".