661082 has 8 divisors (see below), whose sum is σ = 1014816. Its totient is φ = 322812.

The previous prime is 661061. The next prime is 661091. The reversal of 661082 is 280166.

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

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, 3758 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (126852).

2⁶⁶¹⁰⁸² is an apocalyptic number.

661082 is a deficient number, since it is larger than the sum of its proper divisors (353734).

661082 is a wasteful number, since it uses less digits than its factorization.

661082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 661082 is about 813.0694927249. The cubic root of 661082 is about 87.1134293591.

The spelling of 661082 in words is "six hundred sixty-one thousand, eighty-two".