78953222 has 8 divisors (see below), whose sum is σ = 118545672. Its totient is φ = 39438000.

The previous prime is 78953209. The next prime is 78953243. The reversal of 78953222 is 22235987.

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

It is a super-2 number, since 2×78953222² = 12467222528362568, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16679 + ... + 20882.

It is an arithmetic number, because the mean of its divisors is an integer number (14818209).

Almost surely, 2^78953222 is an apocalyptic number.

78953222 is a deficient number, since it is larger than the sum of its proper divisors (39592450).

78953222 is a wasteful number, since it uses less digits than its factorization.

78953222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38614.

The product of its digits is 60480, while the sum is 38.

The square root of 78953222 is about 8885.5625595682. The cubic root of 78953222 is about 428.9993352920. Note that the first 3 decimals are identical.

The spelling of 78953222 in words is "seventy-eight million, nine hundred fifty-three thousand, two hundred twenty-two".