445741973 has 4 divisors (see below), whose sum is σ = 447026880. Its totient is φ = 444457068.

The previous prime is 445741951. The next prime is 445741979. The reversal of 445741973 is 379147544.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 445741973 - 2²⁰ = 444693397 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 (445741979) 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, 641933 + ... + 642626.

It is an arithmetic number, because the mean of its divisors is an integer number (111756720).

Almost surely, 2^445741973 is an apocalyptic number.

It is an amenable number.

445741973 is a deficient number, since it is larger than the sum of its proper divisors (1284907).

445741973 is a wasteful number, since it uses less digits than its factorization.

445741973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284906.

The product of its digits is 423360, while the sum is 44.

The square root of 445741973 is about 21112.6022318425. The cubic root of 445741973 is about 763.8847565407.

The spelling of 445741973 in words is "four hundred forty-five million, seven hundred forty-one thousand, nine hundred seventy-three".