78598012 has 24 divisors (see below), whose sum is σ = 141522192. Its totient is φ = 38179200.

The previous prime is 78598007. The next prime is 78598019. The reversal of 78598012 is 21089587.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78598019) 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, 18312 + ... + 22192.

It is an arithmetic number, because the mean of its divisors is an integer number (5896758).

Almost surely, 2^78598012 is an apocalyptic number.

It is an amenable number.

78598012 is a deficient number, since it is larger than the sum of its proper divisors (62924180).

78598012 is a wasteful number, since it uses less digits than its factorization.

78598012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 78598012 is about 8865.5519850712. The cubic root of 78598012 is about 428.3550130420.

The spelling of 78598012 in words is "seventy-eight million, five hundred ninety-eight thousand, twelve".