67222643 has 8 divisors (see below), whose sum is σ = 69299712. Its totient is φ = 65172616.

The previous prime is 67222619. The next prime is 67222651. The reversal of 67222643 is 34622276.

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

It is a cyclic number.

It is not a de Polignac number, because 67222643 - 2⁶ = 67222579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67222693) 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, 1655 + ... + 11712.

It is an arithmetic number, because the mean of its divisors is an integer number (8662464).

Almost surely, 2^67222643 is an apocalyptic number.

67222643 is a deficient number, since it is larger than the sum of its proper divisors (2077069).

67222643 is a wasteful number, since it uses less digits than its factorization.

67222643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521.

The product of its digits is 24192, while the sum is 32.

The square root of 67222643 is about 8198.9415780331. The cubic root of 67222643 is about 406.6042008178.

The spelling of 67222643 in words is "sixty-seven million, two hundred twenty-two thousand, six hundred forty-three".