68894081 has 8 divisors (see below), whose sum is σ = 73075680. Its totient is φ = 64726848.

The previous prime is 68894051. The next prime is 68894087. The reversal of 68894081 is 18049886.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68894081 is a prime.

It is a super-2 number, since 2×68894081² = 9492788793669122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68894087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7250 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (9134460).

Almost surely, 2^68894081 is an apocalyptic number.

It is an amenable number.

68894081 is a deficient number, since it is larger than the sum of its proper divisors (4181599).

68894081 is a wasteful number, since it uses less digits than its factorization.

68894081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 68894081 is about 8300.2458397327. The cubic root of 68894081 is about 409.9466141078.

The spelling of 68894081 in words is "sixty-eight million, eight hundred ninety-four thousand, eighty-one".