296661 has 4 divisors (see below), whose sum is σ = 395552. Its totient is φ = 197772.

The previous prime is 296651. The next prime is 296663. The reversal of 296661 is 166692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 296661 - 2¹⁴ = 280277 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 296661.

It is not an unprimeable number, because it can be changed into a prime (296663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49441 + ... + 49446.

It is an arithmetic number, because the mean of its divisors is an integer number (98888).

2²⁹⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

296661 is a deficient number, since it is larger than the sum of its proper divisors (98891).

296661 is an equidigital number, since it uses as much as digits as its factorization.

296661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98890.

The product of its digits is 3888, while the sum is 30.

The square root of 296661 is about 544.6659526719. The cubic root of 296661 is about 66.6940082295.

The spelling of 296661 in words is "two hundred ninety-six thousand, six hundred sixty-one".