78864203 has 8 divisors (see below), whose sum is σ = 86159856. Its totient is φ = 71589600.

The previous prime is 78864161. The next prime is 78864221. The reversal of 78864203 is 30246887.

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 78864203 - 2¹⁸ = 78602059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78864223) 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, 3173 + ... + 12953.

It is an arithmetic number, because the mean of its divisors is an integer number (10769982).

Almost surely, 2^78864203 is an apocalyptic number.

78864203 is a deficient number, since it is larger than the sum of its proper divisors (7295653).

78864203 is a wasteful number, since it uses less digits than its factorization.

78864203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 78864203 is about 8880.5519535669. The cubic root of 78864203 is about 428.8380437810.

The spelling of 78864203 in words is "seventy-eight million, eight hundred sixty-four thousand, two hundred three".