68889020 has 24 divisors (see below), whose sum is σ = 148197168. Its totient is φ = 26883200.

The previous prime is 68889019. The next prime is 68889031. The reversal of 68889020 is 2098886.

It is a happy number.

It is a super-3 number, since 3×68889020³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

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, 41186 + ... + 42825.

It is an arithmetic number, because the mean of its divisors is an integer number (6174882).

Almost surely, 2^68889020 is an apocalyptic number.

It is an amenable number.

68889020 is an abundant number, since it is smaller than the sum of its proper divisors (79308148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68889020 is a wasteful number, since it uses less digits than its factorization.

68889020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84061 (or 84059 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 68889020 is about 8299.9409636455. The cubic root of 68889020 is about 409.9365755550.

The spelling of 68889020 in words is "sixty-eight million, eight hundred eighty-nine thousand, twenty".