68893998 has 32 divisors (see below), whose sum is σ = 143016192. Its totient is φ = 22108800.

The previous prime is 68893991. The next prime is 68894003. The reversal of 68893998 is 89939886.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68893991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16438 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (4469256).

Almost surely, 2^68893998 is an apocalyptic number.

68893998 is an abundant number, since it is smaller than the sum of its proper divisors (74122194).

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

68893998 is a wasteful number, since it uses less digits than its factorization.

68893998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880.

The product of its digits is 6718464, while the sum is 60.

The square root of 68893998 is about 8300.2408398793. The cubic root of 68893998 is about 409.9464494803.

The spelling of 68893998 in words is "sixty-eight million, eight hundred ninety-three thousand, nine hundred ninety-eight".