9873091943 has 16 divisors (see below), whose sum is σ = 11762537472. Its totient is φ = 8168412000.

The previous prime is 9873091903. The next prime is 9873091967. The reversal of 9873091943 is 3491903789.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9873091943 - 2⁸ = 9873091687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9873091903) 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, 476063 + ... + 496368.

It is an arithmetic number, because the mean of its divisors is an integer number (735158592).

Almost surely, 2^9873091943 is an apocalyptic number.

9873091943 is a deficient number, since it is larger than the sum of its proper divisors (1889445529).

9873091943 is a wasteful number, since it uses less digits than its factorization.

9873091943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972526.

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

The square root of 9873091943 is about 99363.4336312911. The cubic root of 9873091943 is about 2145.2820245599.

The spelling of 9873091943 in words is "nine billion, eight hundred seventy-three million, ninety-one thousand, nine hundred forty-three".