78770229 has 8 divisors (see below), whose sum is σ = 105146400. Its totient is φ = 52453776.

The previous prime is 78770227. The next prime is 78770269. The reversal of 78770229 is 92207787.

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

It is not a de Polignac number, because 78770229 - 2¹ = 78770227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78770221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11754 + ... + 17195.

It is an arithmetic number, because the mean of its divisors is an integer number (13143300).

Almost surely, 2^78770229 is an apocalyptic number.

It is an amenable number.

78770229 is a deficient number, since it is larger than the sum of its proper divisors (26376171).

78770229 is a wasteful number, since it uses less digits than its factorization.

78770229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29859.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 78770229 is about 8875.2593764915. The cubic root of 78770229 is about 428.6676426682.

The spelling of 78770229 in words is "seventy-eight million, seven hundred seventy thousand, two hundred twenty-nine".