9814705921 has 8 divisors (see below), whose sum is σ = 9912374784. Its totient is φ = 9717083040.

The previous prime is 9814705913. The next prime is 9814705933. The reversal of 9814705921 is 1295074189.

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 9814705921 - 2³ = 9814705913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9814705321) 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, 554805 + ... + 572221.

It is an arithmetic number, because the mean of its divisors is an integer number (1239046848).

Almost surely, 2^9814705921 is an apocalyptic number.

It is an amenable number.

9814705921 is a deficient number, since it is larger than the sum of its proper divisors (97668863).

9814705921 is a wasteful number, since it uses less digits than its factorization.

9814705921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22991.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 9814705921 is about 99069.1976398315. The cubic root of 9814705921 is about 2141.0448446111.

The spelling of 9814705921 in words is "nine billion, eight hundred fourteen million, seven hundred five thousand, nine hundred twenty-one".