82510398 has 12 divisors (see below), whose sum is σ = 178772568. Its totient is φ = 27503460.

The previous prime is 82510397. The next prime is 82510399. The reversal of 82510398 is 89301528.

It is an interprime number because it is at equal distance from previous prime (82510397) and next prime (82510399).

It is a hoax number, since the sum of its digits (36) 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 (82510391) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2291938 + ... + 2291973.

It is an arithmetic number, because the mean of its divisors is an integer number (14897714).

Almost surely, 2^82510398 is an apocalyptic number.

82510398 is an abundant number, since it is smaller than the sum of its proper divisors (96262170).

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

82510398 is a wasteful number, since it uses less digits than its factorization.

82510398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583919 (or 4583916 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82510398 is about 9083.5234353196. The cubic root of 82510398 is about 435.3476729012.

The spelling of 82510398 in words is "eighty-two million, five hundred ten thousand, three hundred ninety-eight".