9831345497 has 4 divisors (see below), whose sum is σ = 10409659956. Its totient is φ = 9253031040.

The previous prime is 9831345493. The next prime is 9831345523. The reversal of 9831345497 is 7945431389.

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 9054664336 + 776681161 = 95156^2 + 27869^2 .

It is a cyclic number.

It is not a de Polignac number, because 9831345497 - 2² = 9831345493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9831345493) 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, 289157204 + ... + 289157237.

It is an arithmetic number, because the mean of its divisors is an integer number (2602414989).

Almost surely, 2^9831345497 is an apocalyptic number.

It is an amenable number.

9831345497 is a deficient number, since it is larger than the sum of its proper divisors (578314459).

9831345497 is a wasteful number, since it uses less digits than its factorization.

9831345497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578314458.

The product of its digits is 3265920, while the sum is 53.

The square root of 9831345497 is about 99153.1416395870. The cubic root of 9831345497 is about 2142.2541171894.

The spelling of 9831345497 in words is "nine billion, eight hundred thirty-one million, three hundred forty-five thousand, four hundred ninety-seven".