78082398 has 12 divisors (see below), whose sum is σ = 169178568. Its totient is φ = 26027460.

The previous prime is 78082391. The next prime is 78082399. The reversal of 78082398 is 89328087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78082391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2168938 + ... + 2168973.

It is an arithmetic number, because the mean of its divisors is an integer number (14098214).

Almost surely, 2^78082398 is an apocalyptic number.

78082398 is an abundant number, since it is smaller than the sum of its proper divisors (91096170).

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

78082398 is a wasteful number, since it uses less digits than its factorization.

78082398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337919 (or 4337916 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 78082398 is about 8836.4245031574. The cubic root of 78082398 is about 427.4162675856.

The spelling of 78082398 in words is "seventy-eight million, eighty-two thousand, three hundred ninety-eight".