839226945 has 16 divisors (see below), whose sum is σ = 1348683840. Its totient is φ = 445614144.

The previous prime is 839226943. The next prime is 839226961. The reversal of 839226945 is 549622938.

It is a happy number.

It is not a de Polignac number, because 839226945 - 2¹ = 839226943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 839226894 and 839226903.

It is not an unprimeable number, because it can be changed into a prime (839226943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119830 + ... + 126639.

It is an arithmetic number, because the mean of its divisors is an integer number (84292740).

Almost surely, 2^839226945 is an apocalyptic number.

It is an amenable number.

839226945 is a deficient number, since it is larger than the sum of its proper divisors (509456895).

839226945 is a wasteful number, since it uses less digits than its factorization.

839226945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246704.

The product of its digits is 933120, while the sum is 48.

The square root of 839226945 is about 28969.4139567924. The cubic root of 839226945 is about 943.2492598501.

The spelling of 839226945 in words is "eight hundred thirty-nine million, two hundred twenty-six thousand, nine hundred forty-five".