78425298 has 24 divisors (see below), whose sum is σ = 194196288. Its totient is φ = 22407192.

The previous prime is 78425261. The next prime is 78425317. The reversal of 78425298 is 89252487.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 311086 + ... + 311337.

It is an arithmetic number, because the mean of its divisors is an integer number (8091512).

Almost surely, 2^78425298 is an apocalyptic number.

78425298 is an abundant number, since it is smaller than the sum of its proper divisors (115770990).

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

78425298 is a wasteful number, since it uses less digits than its factorization.

78425298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622438 (or 622435 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 78425298 is about 8855.8058921817. The cubic root of 78425298 is about 428.0410222130.

The spelling of 78425298 in words is "seventy-eight million, four hundred twenty-five thousand, two hundred ninety-eight".