82817688 has 16 divisors (see below), whose sum is σ = 207044280. Its totient is φ = 27605888.

The previous prime is 82817681. The next prime is 82817689. The reversal of 82817688 is 88671828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82817681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725345 + ... + 1725392.

Almost surely, 2^82817688 is an apocalyptic number.

It is an amenable number.

82817688 is an abundant number, since it is smaller than the sum of its proper divisors (124226592).

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

82817688 is a wasteful number, since it uses less digits than its factorization.

82817688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450746 (or 3450742 counting only the distinct ones).

The product of its digits is 344064, while the sum is 48.

The square root of 82817688 is about 9100.4224077787. The cubic root of 82817688 is about 435.8874523627.

The spelling of 82817688 in words is "eighty-two million, eight hundred seventeen thousand, six hundred eighty-eight".