78486883 has 4 divisors (see below), whose sum is σ = 78815520. Its totient is φ = 78158248.

The previous prime is 78486869. The next prime is 78486887. The reversal of 78486883 is 38868487.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38868487 = 7 ⋅5552641.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78486883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78486883.

It is not an unprimeable number, because it can be changed into a prime (78486887) 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, 163960 + ... + 164437.

It is an arithmetic number, because the mean of its divisors is an integer number (19703880).

Almost surely, 2^78486883 is an apocalyptic number.

78486883 is a deficient number, since it is larger than the sum of its proper divisors (328637).

78486883 is a wasteful number, since it uses less digits than its factorization.

78486883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328636.

The product of its digits is 2064384, while the sum is 52.

The square root of 78486883 is about 8859.2823072752. The cubic root of 78486883 is about 428.1530354277.

The spelling of 78486883 in words is "seventy-eight million, four hundred eighty-six thousand, eight hundred eighty-three".