889444705 has 4 divisors (see below), whose sum is σ = 1067333652. Its totient is φ = 711555760.

The previous prime is 889444691. The next prime is 889444711. The reversal of 889444705 is 507444988.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 224011089 + 665433616 = 14967^2 + 25796^2 .

It is not a de Polignac number, because 889444705 - 2²⁷ = 755226977 is a prime.

It is a super-2 number, since 2×889444705² = 1582223766505074050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88944466 + ... + 88944475.

It is an arithmetic number, because the mean of its divisors is an integer number (266833413).

Almost surely, 2^889444705 is an apocalyptic number.

It is an amenable number.

889444705 is a deficient number, since it is larger than the sum of its proper divisors (177888947).

889444705 is a wasteful number, since it uses less digits than its factorization.

889444705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177888946.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 889444705 is about 29823.5595628691. The cubic root of 889444705 is about 961.7000781687.

The spelling of 889444705 in words is "eight hundred eighty-nine million, four hundred forty-four thousand, seven hundred five".