445864 has 8 divisors (see below), whose sum is σ = 836010. Its totient is φ = 222928.

The previous prime is 445853. The next prime is 445871. The reversal of 445864 is 468544.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 152100 = 542^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27859 + ... + 27874.

2⁴⁴⁵⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

445864 is a deficient number, since it is larger than the sum of its proper divisors (390146).

445864 is a wasteful number, since it uses less digits than its factorization.

445864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55739 (or 55735 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 445864 is about 667.7304845520. The cubic root of 445864 is about 76.3954457598.

The spelling of 445864 in words is "four hundred forty-five thousand, eight hundred sixty-four".