9814428727 has 4 divisors (see below), whose sum is σ = 9815093496. Its totient is φ = 9813763960.

The previous prime is 9814428719. The next prime is 9814428749. The reversal of 9814428727 is 7278244189.

9814428727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7278244189 = 59 ⋅123360071.

It is a cyclic number.

It is not a de Polignac number, because 9814428727 - 2³ = 9814428719 is a prime.

It is a super-2 number, since 2×9814428727² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9814408727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309724 + ... + 339937.

It is an arithmetic number, because the mean of its divisors is an integer number (2453773374).

Almost surely, 2^9814428727 is an apocalyptic number.

9814428727 is a deficient number, since it is larger than the sum of its proper divisors (664769).

9814428727 is a wasteful number, since it uses less digits than its factorization.

9814428727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664768.

The product of its digits is 1806336, while the sum is 52.

The square root of 9814428727 is about 99067.7986381044. The cubic root of 9814428727 is about 2141.0246881107.

The spelling of 9814428727 in words is "nine billion, eight hundred fourteen million, four hundred twenty-eight thousand, seven hundred twenty-seven".