78314222 has 8 divisors (see below), whose sum is σ = 134252976. Its totient is φ = 33563232.

The previous prime is 78314221. The next prime is 78314227. The reversal of 78314222 is 22241387.

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

It is a super-2 number, since 2×78314222² = 12266234734930568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78314221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796923 + ... + 2796950.

It is an arithmetic number, because the mean of its divisors is an integer number (16781622).

Almost surely, 2^78314222 is an apocalyptic number.

78314222 is a deficient number, since it is larger than the sum of its proper divisors (55938754).

78314222 is a wasteful number, since it uses less digits than its factorization.

78314222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593882.

The product of its digits is 5376, while the sum is 29.

The square root of 78314222 is about 8849.5323040260. The cubic root of 78314222 is about 427.8388444720.

The spelling of 78314222 in words is "seventy-eight million, three hundred fourteen thousand, two hundred twenty-two".