844897145 has 16 divisors (see below), whose sum is σ = 1045156608. Its totient is φ = 655334400.

The previous prime is 844897139. The next prime is 844897217. The reversal of 844897145 is 541798448.

It is not a de Polignac number, because 844897145 - 2¹⁴ = 844880761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 844897093 and 844897102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8345 + ... + 41945.

It is an arithmetic number, because the mean of its divisors is an integer number (65322288).

Almost surely, 2^844897145 is an apocalyptic number.

It is an amenable number.

844897145 is a deficient number, since it is larger than the sum of its proper divisors (200259463).

844897145 is a wasteful number, since it uses less digits than its factorization.

844897145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33760.

The product of its digits is 1290240, while the sum is 50.

The square root of 844897145 is about 29067.1144938743. The cubic root of 844897145 is about 945.3688341239.

The spelling of 844897145 in words is "eight hundred forty-four million, eight hundred ninety-seven thousand, one hundred forty-five".