78441223 has 8 divisors (see below), whose sum is σ = 90099200. Its totient is φ = 66896280.

The previous prime is 78441203. The next prime is 78441257. The reversal of 78441223 is 32214487.

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

It is a cyclic number.

It is not a de Polignac number, because 78441223 - 2¹³ = 78433031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78441203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26763 + ... + 29548.

It is an arithmetic number, because the mean of its divisors is an integer number (11262400).

Almost surely, 2^78441223 is an apocalyptic number.

78441223 is a deficient number, since it is larger than the sum of its proper divisors (11657977).

78441223 is a wasteful number, since it uses less digits than its factorization.

78441223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56517.

The product of its digits is 10752, while the sum is 31.

The square root of 78441223 is about 8856.7049741989. The cubic root of 78441223 is about 428.0699928475.

The spelling of 78441223 in words is "seventy-eight million, four hundred forty-one thousand, two hundred twenty-three".