78108223 has 8 divisors (see below), whose sum is σ = 81341280. Its totient is φ = 74911200.

The previous prime is 78108193. The next prime is 78108241. The reversal of 78108223 is 32280187.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78108223 is a prime.

It is a super-2 number, since 2×78108223² = 12201789000435458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78108263) 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 7 ways as a sum of consecutive naturals, for example, 4540 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (10167660).

Almost surely, 2^78108223 is an apocalyptic number.

78108223 is a deficient number, since it is larger than the sum of its proper divisors (3233057).

78108223 is a wasteful number, since it uses less digits than its factorization.

78108223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18017.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 78108223 is about 8837.8856634378. The cubic root of 78108223 is about 427.4633836609.

The spelling of 78108223 in words is "seventy-eight million, one hundred eight thousand, two hundred twenty-three".