853922945 has 4 divisors (see below), whose sum is σ = 1024707540. Its totient is φ = 683138352.

The previous prime is 853922899. The next prime is 853922959. The reversal of 853922945 is 549229358.

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 236052496 + 617870449 = 15364^2 + 24857^2 .

It is a cyclic number.

It is not a de Polignac number, because 853922945 - 2⁸ = 853922689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 853922945.

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, 85392290 + ... + 85392299.

It is an arithmetic number, because the mean of its divisors is an integer number (256176885).

Almost surely, 2^853922945 is an apocalyptic number.

It is an amenable number.

853922945 is a deficient number, since it is larger than the sum of its proper divisors (170784595).

853922945 is a wasteful number, since it uses less digits than its factorization.

853922945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170784594.

The product of its digits is 777600, while the sum is 47.

The square root of 853922945 is about 29221.9599787557. The cubic root of 853922945 is about 948.7232877554.

The spelling of 853922945 in words is "eight hundred fifty-three million, nine hundred twenty-two thousand, nine hundred forty-five".