82507998 has 8 divisors (see below), whose sum is σ = 165016008. Its totient is φ = 27502664.

The previous prime is 82507981. The next prime is 82508009. The reversal of 82507998 is 89970528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

82507998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6875661 + ... + 6875672.

It is an arithmetic number, because the mean of its divisors is an integer number (20627001).

Almost surely, 2^82507998 is an apocalyptic number.

82507998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82507998 is a wasteful number, since it uses less digits than its factorization.

82507998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13751338.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 82507998 is about 9083.3913270320. The cubic root of 82507998 is about 435.3434518391.

The spelling of 82507998 in words is "eighty-two million, five hundred seven thousand, nine hundred ninety-eight".