78856383 has 4 divisors (see below), whose sum is σ = 105141848. Its totient is φ = 52570920.

The previous prime is 78856369. The next prime is 78856399. The reversal of 78856383 is 38365887.

It is a happy number.

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

It is not a de Polignac number, because 78856383 - 2¹³ = 78848191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78856483) 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, 13142728 + ... + 13142733.

It is an arithmetic number, because the mean of its divisors is an integer number (26285462).

Almost surely, 2^78856383 is an apocalyptic number.

78856383 is a deficient number, since it is larger than the sum of its proper divisors (26285465).

78856383 is a wasteful number, since it uses less digits than its factorization.

78856383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26285464.

The product of its digits is 967680, while the sum is 48.

The square root of 78856383 is about 8880.1116547034. Note that the first 3 decimals coincide. The cubic root of 78856383 is about 428.8238691017.

The spelling of 78856383 in words is "seventy-eight million, eight hundred fifty-six thousand, three hundred eighty-three".