445722623 has 8 divisors (see below), whose sum is σ = 450708000. Its totient is φ = 440764128.

The previous prime is 445722617. The next prime is 445722637. The reversal of 445722623 is 326227544.

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 445722623 - 2²⁰ = 444674047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445722323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27590 + ... + 40652.

It is an arithmetic number, because the mean of its divisors is an integer number (56338500).

Almost surely, 2^445722623 is an apocalyptic number.

445722623 is a deficient number, since it is larger than the sum of its proper divisors (4985377).

445722623 is a wasteful number, since it uses less digits than its factorization.

445722623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13441.

The product of its digits is 80640, while the sum is 35.

The square root of 445722623 is about 21112.1439697630. The cubic root of 445722623 is about 763.8737027736.

The spelling of 445722623 in words is "four hundred forty-five million, seven hundred twenty-two thousand, six hundred twenty-three".