9869420273 has 4 divisors (see below), whose sum is σ = 10209745140. Its totient is φ = 9529095408.

The previous prime is 9869420263. The next prime is 9869420279. The reversal of 9869420273 is 3720249689.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3451327504 + 6418092769 = 58748^2 + 80113^2 .

It is a cyclic number.

It is not a de Polignac number, because 9869420273 - 2¹⁰ = 9869419249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9869420279) 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, 170162390 + ... + 170162447.

It is an arithmetic number, because the mean of its divisors is an integer number (2552436285).

Almost surely, 2^9869420273 is an apocalyptic number.

It is an amenable number.

9869420273 is a deficient number, since it is larger than the sum of its proper divisors (340324867).

9869420273 is a wasteful number, since it uses less digits than its factorization.

9869420273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340324866.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 9869420273 is about 99344.9559514724. The cubic root of 9869420273 is about 2145.0160577510.

The spelling of 9869420273 in words is "nine billion, eight hundred sixty-nine million, four hundred twenty thousand, two hundred seventy-three".