9848090921 has 4 divisors (see below), whose sum is σ = 9925635072. Its totient is φ = 9770546772.

The previous prime is 9848090909. The next prime is 9848090927. The reversal of 9848090921 is 1290908489.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9848090921 - 2¹⁰ = 9848089897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9848090921.

It is not an unprimeable number, because it can be changed into a prime (9848090927) 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 3 ways as a sum of consecutive naturals, for example, 38771885 + ... + 38772138.

It is an arithmetic number, because the mean of its divisors is an integer number (2481408768).

Almost surely, 2^9848090921 is an apocalyptic number.

It is an amenable number.

9848090921 is a deficient number, since it is larger than the sum of its proper divisors (77544151).

9848090921 is a wasteful number, since it uses less digits than its factorization.

9848090921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77544150.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 9848090921 is about 99237.5479392755. The cubic root of 9848090921 is about 2143.4697054890.

The spelling of 9848090921 in words is "nine billion, eight hundred forty-eight million, ninety thousand, nine hundred twenty-one".