82307530 has 8 divisors (see below), whose sum is σ = 148153572. Its totient is φ = 32923008.

The previous prime is 82307527. The next prime is 82307549. The reversal of 82307530 is 3570328.

It can be written as a sum of positive squares in 2 ways, for example, as 75290329 + 7017201 = 8677^2 + 2649^2 .

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

It is a super-3 number, since 3×82307530³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4115367 + ... + 4115386.

Almost surely, 2^82307530 is an apocalyptic number.

82307530 is a deficient number, since it is larger than the sum of its proper divisors (65846042).

82307530 is a wasteful number, since it uses less digits than its factorization.

82307530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230760.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 82307530 is about 9072.3497507537. The cubic root of 82307530 is about 434.9905841975.

Adding to 82307530 its reverse (3570328), we get a palindrome (85877858).

The spelling of 82307530 in words is "eighty-two million, three hundred seven thousand, five hundred thirty".