9085713839 has 4 divisors (see below), whose sum is σ = 9257142456. Its totient is φ = 8914285224.

The previous prime is 9085713803. The next prime is 9085713859. The reversal of 9085713839 is 9383175809.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9085713839 - 2⁸ = 9085713583 is a prime.

It is a super-2 number, since 2×9085713839² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 171428563 = 9085713839 / (9 + 0 + 8 + 5 + 7 + 1 + 3 + 8 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9085713859) 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, 85714229 + ... + 85714334.

It is an arithmetic number, because the mean of its divisors is an integer number (2314285614).

Almost surely, 2^9085713839 is an apocalyptic number.

9085713839 is a deficient number, since it is larger than the sum of its proper divisors (171428617).

9085713839 is a wasteful number, since it uses less digits than its factorization.

9085713839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171428616.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 9085713839 is about 95319.0109002396. The cubic root of 9085713839 is about 2086.6663764756. Note that the first 3 decimals are identical.

The spelling of 9085713839 in words is "nine billion, eighty-five million, seven hundred thirteen thousand, eight hundred thirty-nine".