82645480 has 16 divisors (see below), whose sum is σ = 185952420. Its totient is φ = 33058176.

The previous prime is 82645469. The next prime is 82645481. The reversal of 82645480 is 8454628.

It can be written as a sum of positive squares in 2 ways, for example, as 79816356 + 2829124 = 8934^2 + 1682^2 .

It is not an unprimeable number, because it can be changed into a prime (82645481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033029 + ... + 1033108.

Almost surely, 2^82645480 is an apocalyptic number.

It is an amenable number.

82645480 is an abundant number, since it is smaller than the sum of its proper divisors (103306940).

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

82645480 is a wasteful number, since it uses less digits than its factorization.

82645480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066148 (or 2066144 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 82645480 is about 9090.9559453338. The cubic root of 82645480 is about 435.5851200295.

The spelling of 82645480 in words is "eighty-two million, six hundred forty-five thousand, four hundred eighty".