817528982 has 8 divisors (see below), whose sum is σ = 1226421000. Its totient is φ = 408721984.

The previous prime is 817528981. The next prime is 817529021. The reversal of 817528982 is 289825718.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 817528982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (817528981) 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, 15494 + ... + 43302.

It is an arithmetic number, because the mean of its divisors is an integer number (153302625).

Almost surely, 2^817528982 is an apocalyptic number.

817528982 is a deficient number, since it is larger than the sum of its proper divisors (408892018).

817528982 is a wasteful number, since it uses less digits than its factorization.

817528982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42510.

The product of its digits is 645120, while the sum is 50.

The square root of 817528982 is about 28592.4637273531. The cubic root of 817528982 is about 935.0490340037.

The spelling of 817528982 in words is "eight hundred seventeen million, five hundred twenty-eight thousand, nine hundred eighty-two".