68913894 has 48 divisors (see below), whose sum is σ = 161459568. Its totient is φ = 19551168.

The previous prime is 68913881. The next prime is 68913973. The reversal of 68913894 is 49831986.

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 23 ways as a sum of consecutive naturals, for example, 45412 + ... + 46904.

It is an arithmetic number, because the mean of its divisors is an integer number (3363741).

Almost surely, 2^68913894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68913894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80729784).

68913894 is an abundant number, since it is smaller than the sum of its proper divisors (92545674).

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

68913894 is a wasteful number, since it uses less digits than its factorization.

68913894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1662 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 68913894 is about 8301.4392728008. The cubic root of 68913894 is about 409.9859086967.

The spelling of 68913894 in words is "sixty-eight million, nine hundred thirteen thousand, eight hundred ninety-four".