9427998131 has 8 divisors (see below), whose sum is σ = 9466974144. Its totient is φ = 9389053440.

The previous prime is 9427998079. The next prime is 9427998169. The reversal of 9427998131 is 1318997249.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9427998131 - 2¹⁰ = 9427997107 is a prime.

It is a super-2 number, since 2×9427998131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9427998031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739745 + ... + 752381.

It is an arithmetic number, because the mean of its divisors is an integer number (1183371768).

Almost surely, 2^9427998131 is an apocalyptic number.

9427998131 is a deficient number, since it is larger than the sum of its proper divisors (38976013).

9427998131 is a wasteful number, since it uses less digits than its factorization.

9427998131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15661.

The product of its digits is 979776, while the sum is 53.

The square root of 9427998131 is about 97097.8791271982. The cubic root of 9427998131 is about 2112.5475642384.

The spelling of 9427998131 in words is "nine billion, four hundred twenty-seven million, nine hundred ninety-eight thousand, one hundred thirty-one".