68841663 has 8 divisors (see below), whose sum is σ = 100133376. Its totient is φ = 41722200.

The previous prime is 68841659. The next prime is 68841683. The reversal of 68841663 is 36614886.

It is a happy number.

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

It is not a de Polignac number, because 68841663 - 2² = 68841659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68841683) 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, 1043023 + ... + 1043088.

It is an arithmetic number, because the mean of its divisors is an integer number (12516672).

Almost surely, 2^68841663 is an apocalyptic number.

68841663 is a deficient number, since it is larger than the sum of its proper divisors (31291713).

68841663 is a wasteful number, since it uses less digits than its factorization.

68841663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086125.

The product of its digits is 165888, while the sum is 42.

The square root of 68841663 is about 8297.0876215694. The cubic root of 68841663 is about 409.8426185567.

The spelling of 68841663 in words is "sixty-eight million, eight hundred forty-one thousand, six hundred sixty-three".