78806229 has 12 divisors (see below), whose sum is σ = 107582976. Its totient is φ = 51312072.

The previous prime is 78806209. The next prime is 78806251. The reversal of 78806229 is 92260887.

It is a happy number.

It is not a de Polignac number, because 78806229 - 2⁵ = 78806197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78806209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1557 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (8965248).

Almost surely, 2^78806229 is an apocalyptic number.

It is an amenable number.

78806229 is a deficient number, since it is larger than the sum of its proper divisors (28776747).

78806229 is a wasteful number, since it uses less digits than its factorization.

78806229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14296 (or 14253 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 78806229 is about 8877.2872545615. The cubic root of 78806229 is about 428.7329367308.

The spelling of 78806229 in words is "seventy-eight million, eight hundred six thousand, two hundred twenty-nine".