68198589 has 12 divisors (see below), whose sum is σ = 98592000. Its totient is φ = 45427464.

The previous prime is 68198579. The next prime is 68198591. The reversal of 68198589 is 98589186.

It is not a de Polignac number, because 68198589 - 2⁴ = 68198573 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68198579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11812 + ... + 16610.

It is an arithmetic number, because the mean of its divisors is an integer number (8216000).

Almost surely, 2^68198589 is an apocalyptic number.

It is an amenable number.

68198589 is a deficient number, since it is larger than the sum of its proper divisors (30393411).

68198589 is a wasteful number, since it uses less digits than its factorization.

68198589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384 (or 6381 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 68198589 is about 8258.2436994799. The cubic root of 68198589 is about 408.5624631383.

The spelling of 68198589 in words is "sixty-eight million, one hundred ninety-eight thousand, five hundred eighty-nine".