78599487 has 8 divisors (see below), whose sum is σ = 109355904. Its totient is φ = 50121368.

The previous prime is 78599471. The next prime is 78599489. The reversal of 78599487 is 78499587.

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 78599487 - 2⁴ = 78599471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78599489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569493 + ... + 569630.

It is an arithmetic number, because the mean of its divisors is an integer number (13669488).

Almost surely, 2^78599487 is an apocalyptic number.

78599487 is a deficient number, since it is larger than the sum of its proper divisors (30756417).

78599487 is a wasteful number, since it uses less digits than its factorization.

78599487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139149.

The product of its digits is 5080320, while the sum is 57.

The square root of 78599487 is about 8865.6351718306. The cubic root of 78599487 is about 428.3576925826.

The spelling of 78599487 in words is "seventy-eight million, five hundred ninety-nine thousand, four hundred eighty-seven".