78822222 has 32 divisors (see below), whose sum is σ = 166358400. Its totient is φ = 24828768.

The previous prime is 78822209. The next prime is 78822223. The reversal of 78822222 is 22222887.

78822222 is a modest number, since divided by 22222 gives 788 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78822223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70008 + ... + 71124.

It is an arithmetic number, because the mean of its divisors is an integer number (5198700).

Almost surely, 2^78822222 is an apocalyptic number.

78822222 is an abundant number, since it is smaller than the sum of its proper divisors (87536178).

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

78822222 is a wasteful number, since it uses less digits than its factorization.

78822222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760.

The product of its digits is 14336, while the sum is 33.

The square root of 78822222 is about 8878.1879908008. The cubic root of 78822222 is about 428.7619372390.

The spelling of 78822222 in words is "seventy-eight million, eight hundred twenty-two thousand, two hundred twenty-two".