67722872 has 16 divisors (see below), whose sum is σ = 145120560. Its totient is φ = 29024064.

The previous prime is 67722827. The next prime is 67722881. The reversal of 67722872 is 27822776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604613 + ... + 604724.

It is an arithmetic number, because the mean of its divisors is an integer number (9070035).

Almost surely, 2^67722872 is an apocalyptic number.

It is an amenable number.

67722872 is an abundant number, since it is smaller than the sum of its proper divisors (77397688).

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

67722872 is a wasteful number, since it uses less digits than its factorization.

67722872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209350 (or 1209346 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 67722872 is about 8229.3907429408. The cubic root of 67722872 is about 407.6102743950.

The spelling of 67722872 in words is "sixty-seven million, seven hundred twenty-two thousand, eight hundred seventy-two".