68281677 has 16 divisors (see below), whose sum is σ = 101959680. Its totient is φ = 45160416.

The previous prime is 68281669. The next prime is 68281679. The reversal of 68281677 is 77618286.

It is not a de Polignac number, because 68281677 - 2³ = 68281669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68281679) 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, 6528 + ... + 13385.

It is an arithmetic number, because the mean of its divisors is an integer number (6372480).

Almost surely, 2^68281677 is an apocalyptic number.

It is an amenable number.

68281677 is a deficient number, since it is larger than the sum of its proper divisors (33678003).

68281677 is a wasteful number, since it uses less digits than its factorization.

68281677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20049 (or 20043 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 68281677 is about 8263.2727777800. The cubic root of 68281677 is about 408.7283163314.

The spelling of 68281677 in words is "sixty-eight million, two hundred eighty-one thousand, six hundred seventy-seven".