82661532 has 24 divisors (see below), whose sum is σ = 196982016. Its totient is φ = 26967408.

The previous prime is 82661519. The next prime is 82661539. The reversal of 82661532 is 23516628.

It is a junction number, because it is equal to n+sod(n) for n = 82661493 and 82661502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82661539) 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 7 ways as a sum of consecutive naturals, for example, 72718 + ... + 73845.

It is an arithmetic number, because the mean of its divisors is an integer number (8207584).

Almost surely, 2^82661532 is an apocalyptic number.

It is an amenable number.

82661532 is an abundant number, since it is smaller than the sum of its proper divisors (114320484).

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

82661532 is a wasteful number, since it uses less digits than its factorization.

82661532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146617 (or 146615 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 82661532 is about 9091.8387579191. The cubic root of 82661532 is about 435.6133190297.

The spelling of 82661532 in words is "eighty-two million, six hundred sixty-one thousand, five hundred thirty-two".