67899222 has 40 divisors (see below), whose sum is σ = 154661232. Its totient is φ = 22258800.

The previous prime is 67899211. The next prime is 67899259. The reversal of 67899222 is 22299876.

It is a super-2 number, since 2×67899222² = 9220608696410568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6447 + ... + 13317.

Almost surely, 2^67899222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67899222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77330616).

67899222 is an abundant number, since it is smaller than the sum of its proper divisors (86762010).

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

67899222 is a wasteful number, since it uses less digits than its factorization.

67899222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6946 (or 6937 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 67899222 is about 8240.0984217423. The cubic root of 67899222 is about 407.9637727349.

It can be divided in two parts, 67899 and 222, that added together give a square (68121 = 261²).

The spelling of 67899222 in words is "sixty-seven million, eight hundred ninety-nine thousand, two hundred twenty-two".