78859801 has 8 divisors (see below), whose sum is σ = 82768320. Its totient is φ = 74991312.

The previous prime is 78859799. The next prime is 78859811. The reversal of 78859801 is 10895887.

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 78859801 - 2¹ = 78859799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78859811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5931 + ... + 13888.

It is an arithmetic number, because the mean of its divisors is an integer number (10346040).

Almost surely, 2^78859801 is an apocalyptic number.

It is an amenable number.

78859801 is a deficient number, since it is larger than the sum of its proper divisors (3908519).

78859801 is a wasteful number, since it uses less digits than its factorization.

78859801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015.

The product of its (nonzero) digits is 161280, while the sum is 46.

The square root of 78859801 is about 8880.3041051532. The cubic root of 78859801 is about 428.8300647481.

The spelling of 78859801 in words is "seventy-eight million, eight hundred fifty-nine thousand, eight hundred one".