67791222 has 16 divisors (see below), whose sum is σ = 150647280. Its totient is φ = 22597056.

The previous prime is 67791209. The next prime is 67791233. The reversal of 67791222 is 22219776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627643 + ... + 627750.

It is an arithmetic number, because the mean of its divisors is an integer number (9415455).

Almost surely, 2^67791222 is an apocalyptic number.

67791222 is an abundant number, since it is smaller than the sum of its proper divisors (82856058).

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

67791222 is a wasteful number, since it uses less digits than its factorization.

67791222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255404 (or 1255398 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 67791222 is about 8233.5424939694. The cubic root of 67791222 is about 407.7473565652.

It can be divided in two parts, 6779 and 1222, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 67791222 in words is "sixty-seven million, seven hundred ninety-one thousand, two hundred twenty-two".