68910489 has 24 divisors (see below), whose sum is σ = 103181312. Its totient is φ = 44271360.

The previous prime is 68910487. The next prime is 68910493. The reversal of 68910489 is 98401986.

It is not a de Polignac number, because 68910489 - 2¹ = 68910487 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 (68910487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102057 + ... + 102729.

Almost surely, 2^68910489 is an apocalyptic number.

It is an amenable number.

68910489 is a deficient number, since it is larger than the sum of its proper divisors (34270823).

68910489 is a wasteful number, since it uses less digits than its factorization.

68910489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 68910489 is about 8301.2341853486. The cubic root of 68910489 is about 409.9791561880.

The spelling of 68910489 in words is "sixty-eight million, nine hundred ten thousand, four hundred eighty-nine".