71722068 has 24 divisors (see below), whose sum is σ = 182565600. Its totient is φ = 21733920.

The previous prime is 71722067. The next prime is 71722069. The reversal of 71722068 is 86022717.

It is an interprime number because it is at equal distance from previous prime (71722067) and next prime (71722069).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71722061) 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, 271543 + ... + 271806.

It is an arithmetic number, because the mean of its divisors is an integer number (7606900).

Almost surely, 2^71722068 is an apocalyptic number.

It is an amenable number.

71722068 is an abundant number, since it is smaller than the sum of its proper divisors (110843532).

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

71722068 is a wasteful number, since it uses less digits than its factorization.

71722068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543367 (or 543365 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 71722068 is about 8468.8882387241. Note that the first 3 decimals coincide. The cubic root of 71722068 is about 415.4807763338.

The spelling of 71722068 in words is "seventy-one million, seven hundred twenty-two thousand, sixty-eight".