787222 has 4 divisors (see below), whose sum is σ = 1180836. Its totient is φ = 393610.

The previous prime is 787217. The next prime is 787243. The reversal of 787222 is 222787.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

787222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196804 + ... + 196807.

It is an arithmetic number, because the mean of its divisors is an integer number (295209).

2⁷⁸⁷²²² is an apocalyptic number.

787222 is a deficient number, since it is larger than the sum of its proper divisors (393614).

787222 is a wasteful number, since it uses less digits than its factorization.

787222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393613.

The product of its digits is 3136, while the sum is 28.

The square root of 787222 is about 887.2553183836. The cubic root of 787222 is about 92.3348697397.

The spelling of 787222 in words is "seven hundred eighty-seven thousand, two hundred twenty-two".