68889418 has 8 divisors (see below), whose sum is σ = 111282948. Its totient is φ = 31795104.

The previous prime is 68889391. The next prime is 68889427. The reversal of 68889418 is 81498886.

It can be written as a sum of positive squares in 2 ways, for example, as 68508729 + 380689 = 8277^2 + 617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324771 + ... + 1324822.

Almost surely, 2^68889418 is an apocalyptic number.

68889418 is a deficient number, since it is larger than the sum of its proper divisors (42393530).

68889418 is a wasteful number, since it uses less digits than its factorization.

68889418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649608.

The product of its digits is 884736, while the sum is 52.

The square root of 68889418 is about 8299.9649396850. The cubic root of 68889418 is about 409.9373650105.

The spelling of 68889418 in words is "sixty-eight million, eight hundred eighty-nine thousand, four hundred eighteen".