661482 has 12 divisors (see below), whose sum is σ = 1433250. Its totient is φ = 220488.

The previous prime is 661481. The next prime is 661483. The reversal of 661482 is 284166.

It is an interprime number because it is at equal distance from previous prime (661481) and next prime (661483).

It can be written as a sum of positive squares in only one way, i.e., 641601 + 19881 = 801^2 + 141^2 .

It is not an unprimeable number, because it can be changed into a prime (661481) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 18357 + ... + 18392.

2⁶⁶¹⁴⁸² is an apocalyptic number.

661482 is an abundant number, since it is smaller than the sum of its proper divisors (771768).

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

661482 is a wasteful number, since it uses less digits than its factorization.

661482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36757 (or 36754 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 661482 is about 813.3154369616. The cubic root of 661482 is about 87.1309956853.

The spelling of 661482 in words is "six hundred sixty-one thousand, four hundred eighty-two".