78473598 has 64 divisors (see below), whose sum is σ = 193881600. Its totient is φ = 21092736.

The previous prime is 78473561. The next prime is 78473609. The reversal of 78473598 is 89537487.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 78473598.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33865 + ... + 36107.

It is an arithmetic number, because the mean of its divisors is an integer number (3029400).

Almost surely, 2^78473598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78473598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96940800).

78473598 is an abundant number, since it is smaller than the sum of its proper divisors (115408002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78473598 is a wasteful number, since it uses less digits than its factorization.

78473598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2272 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 78473598 is about 8858.5324969771. The cubic root of 78473598 is about 428.1288771063.

The spelling of 78473598 in words is "seventy-eight million, four hundred seventy-three thousand, five hundred ninety-eight".