78801459 has 8 divisors (see below), whose sum is σ = 114620352. Its totient is φ = 47758440.

The previous prime is 78801449. The next prime is 78801509. The reversal of 78801459 is 95410887.

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

It is not a de Polignac number, because 78801459 - 2¹¹ = 78799411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78801459.

It is not an unprimeable number, because it can be changed into a prime (78801449) 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, 1193929 + ... + 1193994.

It is an arithmetic number, because the mean of its divisors is an integer number (14327544).

Almost surely, 2^78801459 is an apocalyptic number.

78801459 is a deficient number, since it is larger than the sum of its proper divisors (35818893).

78801459 is a wasteful number, since it uses less digits than its factorization.

78801459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387937.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 78801459 is about 8877.0185873411. The cubic root of 78801459 is about 428.7242864105.

It can be divided in two parts, 7880 and 1459, that added together give a palindrome (9339).

The spelling of 78801459 in words is "seventy-eight million, eight hundred one thousand, four hundred fifty-nine".