78869233 has 4 divisors (see below), whose sum is σ = 78962548. Its totient is φ = 78775920.

The previous prime is 78869227. The next prime is 78869249. The reversal of 78869233 is 33296887.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21594609 + 57274624 = 4647^2 + 7568^2 .

It is a cyclic number.

It is not a de Polignac number, because 78869233 - 2⁵ = 78869201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78869213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45378 + ... + 47083.

It is an arithmetic number, because the mean of its divisors is an integer number (19740637).

Almost surely, 2^78869233 is an apocalyptic number.

It is an amenable number.

78869233 is a deficient number, since it is larger than the sum of its proper divisors (93315).

78869233 is an equidigital number, since it uses as much as digits as its factorization.

78869233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93314.

The product of its digits is 435456, while the sum is 46.

The square root of 78869233 is about 8880.8351521690. The cubic root of 78869233 is about 428.8471607585.

The spelling of 78869233 in words is "seventy-eight million, eight hundred sixty-nine thousand, two hundred thirty-three".