445797811 has 4 divisors (see below), whose sum is σ = 445840272. Its totient is φ = 445755352.

The previous prime is 445797761. The next prime is 445797823. The reversal of 445797811 is 118797544.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445797811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445797841) 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, 7290 + ... + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (111460068).

Almost surely, 2^445797811 is an apocalyptic number.

445797811 is a deficient number, since it is larger than the sum of its proper divisors (42461).

445797811 is a wasteful number, since it uses less digits than its factorization.

445797811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42460.

The product of its digits is 282240, while the sum is 46.

The square root of 445797811 is about 21113.9245759759. The cubic root of 445797811 is about 763.9166524346.

The spelling of 445797811 in words is "four hundred forty-five million, seven hundred ninety-seven thousand, eight hundred eleven".