9739232981 has 16 divisors (see below), whose sum is σ = 10241730816. Its totient is φ = 9250376256.

The previous prime is 9739232929. The next prime is 9739233011. The reversal of 9739232981 is 1892329379.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9739232981 - 2¹⁸ = 9738970837 is a prime.

It is a super-2 number, since 2×9739232981² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9739232281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683330 + ... + 697436.

It is an arithmetic number, because the mean of its divisors is an integer number (640108176).

Almost surely, 2^9739232981 is an apocalyptic number.

It is an amenable number.

9739232981 is a deficient number, since it is larger than the sum of its proper divisors (502497835).

9739232981 is a wasteful number, since it uses less digits than its factorization.

9739232981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14588.

The product of its digits is 1469664, while the sum is 53.

The square root of 9739232981 is about 98687.5523103091. The cubic root of 9739232981 is about 2135.5426615028.

The spelling of 9739232981 in words is "nine billion, seven hundred thirty-nine million, two hundred thirty-two thousand, nine hundred eighty-one".