9738749231 has 32 divisors (see below), whose sum is σ = 10998374400. Its totient is φ = 8580176640.

The previous prime is 9738749213. The next prime is 9738749249. The reversal of 9738749231 is 1329478379.

It is an interprime number because it is at equal distance from previous prime (9738749213) and next prime (9738749249).

It is a de Polignac number, because none of the positive numbers 2^k-9738749231 is a prime.

It is a super-2 number, since 2×9738749231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9738749201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3978650 + ... + 3981096.

It is an arithmetic number, because the mean of its divisors is an integer number (343699200).

Almost surely, 2^9738749231 is an apocalyptic number.

9738749231 is a deficient number, since it is larger than the sum of its proper divisors (1259625169).

9738749231 is a wasteful number, since it uses less digits than its factorization.

9738749231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its digits is 2286144, while the sum is 53.

The square root of 9738749231 is about 98685.1013628704. The cubic root of 9738749231 is about 2135.5073032815.

The spelling of 9738749231 in words is "nine billion, seven hundred thirty-eight million, seven hundred forty-nine thousand, two hundred thirty-one".