445296689 has 4 divisors (see below), whose sum is σ = 447784560. Its totient is φ = 442808820.

The previous prime is 445296661. The next prime is 445296697. The reversal of 445296689 is 986692544.

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 445296689 - 2²⁴ = 428519473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445296689.

It is not an unprimeable number, because it can be changed into a prime (445296289) 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, 1243667 + ... + 1244024.

It is an arithmetic number, because the mean of its divisors is an integer number (111946140).

Almost surely, 2^445296689 is an apocalyptic number.

It is an amenable number.

445296689 is a deficient number, since it is larger than the sum of its proper divisors (2487871).

445296689 is a wasteful number, since it uses less digits than its factorization.

445296689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487870.

The product of its digits is 3732480, while the sum is 53.

The square root of 445296689 is about 21102.0541417181. The cubic root of 445296689 is about 763.6303051549.

The spelling of 445296689 in words is "four hundred forty-five million, two hundred ninety-six thousand, six hundred eighty-nine".