78789306 has 16 divisors (see below), whose sum is σ = 164430144. Its totient is φ = 25121184.

The previous prime is 78789301. The next prime is 78789313. The reversal of 78789306 is 60398787.

It is a super-3 number, since 3×78789306³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78789301) 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, 285331 + ... + 285606.

It is an arithmetic number, because the mean of its divisors is an integer number (10276884).

Almost surely, 2^78789306 is an apocalyptic number.

78789306 is an abundant number, since it is smaller than the sum of its proper divisors (85640838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78789306 is a wasteful number, since it uses less digits than its factorization.

78789306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570965.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 78789306 is about 8876.3340405823. The cubic root of 78789306 is about 428.7022455575.

The spelling of 78789306 in words is "seventy-eight million, seven hundred eighty-nine thousand, three hundred six".