78859311 has 8 divisors (see below), whose sum is σ = 111330864. Its totient is φ = 49480320.

The previous prime is 78859309. The next prime is 78859327. The reversal of 78859311 is 11395887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78859311 - 2¹ = 78859309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78859331) 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, 773080 + ... + 773181.

It is an arithmetic number, because the mean of its divisors is an integer number (13916358).

Almost surely, 2^78859311 is an apocalyptic number.

78859311 is a deficient number, since it is larger than the sum of its proper divisors (32471553).

78859311 is a wasteful number, since it uses less digits than its factorization.

78859311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546281.

The product of its digits is 60480, while the sum is 42.

The square root of 78859311 is about 8880.2765159650. The cubic root of 78859311 is about 428.8291765594.

The spelling of 78859311 in words is "seventy-eight million, eight hundred fifty-nine thousand, three hundred eleven".