68332771 has 4 divisors (see below), whose sum is σ = 73589152. Its totient is φ = 63076392.

The previous prime is 68332763. The next prime is 68332777. The reversal of 68332771 is 17723386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68332771 - 2³ = 68332763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68332771.

It is not an unprimeable number, because it can be changed into a prime (68332777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2628171 + ... + 2628196.

It is an arithmetic number, because the mean of its divisors is an integer number (18397288).

Almost surely, 2^68332771 is an apocalyptic number.

68332771 is a deficient number, since it is larger than the sum of its proper divisors (5256381).

68332771 is a wasteful number, since it uses less digits than its factorization.

68332771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256380.

The product of its digits is 42336, while the sum is 37.

The square root of 68332771 is about 8266.3638318187. The cubic root of 68332771 is about 408.8302390274.

It can be divided in two parts, 6833 and 2771, that added together give a square (9604 = 98²).

The spelling of 68332771 in words is "sixty-eight million, three hundred thirty-two thousand, seven hundred seventy-one".