9938576231 has 4 divisors (see below), whose sum is σ = 9941574000. Its totient is φ = 9935578464.

The previous prime is 9938576213. The next prime is 9938576251. The reversal of 9938576231 is 1326758399.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9938576231 is a prime.

It is a super-2 number, since 2×9938576231² (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 (9938576201) 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, 1493906 + ... + 1500543.

It is an arithmetic number, because the mean of its divisors is an integer number (2485393500).

Almost surely, 2^9938576231 is an apocalyptic number.

9938576231 is a deficient number, since it is larger than the sum of its proper divisors (2997769).

9938576231 is a wasteful number, since it uses less digits than its factorization.

9938576231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997768.

The product of its digits is 2449440, while the sum is 53.

The square root of 9938576231 is about 99692.4080910879. The cubic root of 9938576231 is about 2150.0145108810.

It can be divided in two parts, 99385 and 76231, that added together give a cube (175616 = 56³).

The spelling of 9938576231 in words is "nine billion, nine hundred thirty-eight million, five hundred seventy-six thousand, two hundred thirty-one".