82487797 has 16 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 66780720.

The previous prime is 82487767. The next prime is 82487809. The reversal of 82487797 is 79778428.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82487797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82487767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56604 + ... + 58042.

It is an arithmetic number, because the mean of its divisors is an integer number (6220800).

Almost surely, 2^82487797 is an apocalyptic number.

It is an amenable number.

82487797 is a deficient number, since it is larger than the sum of its proper divisors (17045003).

82487797 is a wasteful number, since it uses less digits than its factorization.

82487797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its digits is 1580544, while the sum is 52.

The square root of 82487797 is about 9082.2792844087. The cubic root of 82487797 is about 435.3079195630.

The spelling of 82487797 in words is "eighty-two million, four hundred eighty-seven thousand, seven hundred ninety-seven".