82897638 has 16 divisors (see below), whose sum is σ = 166713456. Its totient is φ = 27479520.

The previous prime is 82897609. The next prime is 82897643. The reversal of 82897638 is 83679828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37081 + ... + 39252.

It is an arithmetic number, because the mean of its divisors is an integer number (10419591).

Almost surely, 2^82897638 is an apocalyptic number.

82897638 is an abundant number, since it is smaller than the sum of its proper divisors (83815818).

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

82897638 is a wasteful number, since it uses less digits than its factorization.

82897638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76519.

The product of its digits is 1161216, while the sum is 51.

The square root of 82897638 is about 9104.8140013951. The cubic root of 82897638 is about 436.0276719805.

The spelling of 82897638 in words is "eighty-two million, eight hundred ninety-seven thousand, six hundred thirty-eight".