82911530 has 16 divisors (see below), whose sum is σ = 160721064. Its totient is φ = 30613440.

The previous prime is 82911503. The next prime is 82911571. The reversal of 82911530 is 3511928.

It can be written as a sum of positive squares in 4 ways, for example, as 70073641 + 12837889 = 8371^2 + 3583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82911493 and 82911502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318761 + ... + 319020.

Almost surely, 2^82911530 is an apocalyptic number.

82911530 is a deficient number, since it is larger than the sum of its proper divisors (77809534).

82911530 is a wasteful number, since it uses less digits than its factorization.

82911530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637801.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 82911530 is about 9105.5768625607. The cubic root of 82911530 is about 436.0520271500.

The spelling of 82911530 in words is "eighty-two million, nine hundred eleven thousand, five hundred thirty".