445961 has 8 divisors (see below), whose sum is σ = 485640. Its totient is φ = 407808.

The previous prime is 445943. The next prime is 445967. The reversal of 445961 is 169544.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 319225 = 356^2 + 565^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 445961 - 2¹⁰ = 444937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (60705).

2⁴⁴⁵⁹⁶¹ is an apocalyptic number.

It is an amenable number.

445961 is a deficient number, since it is larger than the sum of its proper divisors (39679).

445961 is a wasteful number, since it uses less digits than its factorization.

445961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its digits is 4320, while the sum is 29.

The square root of 445961 is about 667.8031146977. The cubic root of 445961 is about 76.4009854318.

The spelling of 445961 in words is "four hundred forty-five thousand, nine hundred sixty-one".