9920004727 has 4 divisors (see below), whose sum is σ = 9920208816. Its totient is φ = 9919800640.

The previous prime is 9920004701. The next prime is 9920004749. The reversal of 9920004727 is 7274000299.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9920004727 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 9920004727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920004797) 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, 17718 + ... + 141964.

It is an arithmetic number, because the mean of its divisors is an integer number (2480052204).

Almost surely, 2^9920004727 is an apocalyptic number.

9920004727 is a deficient number, since it is larger than the sum of its proper divisors (204089).

9920004727 is a wasteful number, since it uses less digits than its factorization.

9920004727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204088.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 9920004727 is about 99599.2205140181. The cubic root of 9920004727 is about 2148.6744832676.

The spelling of 9920004727 in words is "nine billion, nine hundred twenty million, four thousand, seven hundred twenty-seven".