9049931397 has 12 divisors (see below), whose sum is σ = 14077671244. Its totient is φ = 5569188480.

The previous prime is 9049931369. The next prime is 9049931411. The reversal of 9049931397 is 7931399409.

9049931397 is a `hidden beast` number, since 90 + 499 + 31 + 39 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 907756641 + 8142174756 = 30129^2 + 90234^2 .

It is not a de Polignac number, because 9049931397 - 2¹⁶ = 9049865861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9049931497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38674804 + ... + 38675037.

Almost surely, 2^9049931397 is an apocalyptic number.

It is an amenable number.

9049931397 is a deficient number, since it is larger than the sum of its proper divisors (5027739847).

9049931397 is a wasteful number, since it uses less digits than its factorization.

9049931397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77349860 (or 77349857 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The square root of 9049931397 is about 95131.1273821560. The cubic root of 9049931397 is about 2083.9234530069.

The spelling of 9049931397 in words is "nine billion, forty-nine million, nine hundred thirty-one thousand, three hundred ninety-seven".