9239821974 has 48 divisors (see below), whose sum is σ = 20218439904. Its totient is φ = 3049488000.

The previous prime is 9239821973. The next prime is 9239822017. The reversal of 9239821974 is 4791289329.

It is a super-2 number, since 2×9239821974² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9239821974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9239821973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845304 + ... + 856164.

It is an arithmetic number, because the mean of its divisors is an integer number (421217498).

Almost surely, 2^9239821974 is an apocalyptic number.

9239821974 is an abundant number, since it is smaller than the sum of its proper divisors (10978617930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9239821974 is a wasteful number, since it uses less digits than its factorization.

9239821974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333 (or 11330 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 9239821974 is about 96123.9927073361. The cubic root of 9239821974 is about 2098.3980204216.

The spelling of 9239821974 in words is "nine billion, two hundred thirty-nine million, eight hundred twenty-one thousand, nine hundred seventy-four".