9982999531 has 4 divisors (see below), whose sum is σ = 10131999592. Its totient is φ = 9833999472.

The previous prime is 9982999529. The next prime is 9982999541. The reversal of 9982999531 is 1359992899.

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

It is a cyclic number.

It is not a de Polignac number, because 9982999531 - 2¹ = 9982999529 is a prime.

It is a super-2 number, since 2×9982999531² (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 (9982999541) 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, 74499930 + ... + 74500063.

It is an arithmetic number, because the mean of its divisors is an integer number (2532999898).

Almost surely, 2^9982999531 is an apocalyptic number.

9982999531 is a deficient number, since it is larger than the sum of its proper divisors (149000061).

9982999531 is a wasteful number, since it uses less digits than its factorization.

9982999531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149000060.

The product of its digits is 14171760, while the sum is 64.

The square root of 9982999531 is about 99914.9614972653. The cubic root of 9982999531 is about 2153.2131175213.

The spelling of 9982999531 in words is "nine billion, nine hundred eighty-two million, nine hundred ninety-nine thousand, five hundred thirty-one".