9728863277 has 8 divisors (see below), whose sum is σ = 11355269376. Its totient is φ = 8161599312.

The previous prime is 9728863273. The next prime is 9728863283. The reversal of 9728863277 is 7723688279.

It is a happy number.

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 9728863277 - 2² = 9728863273 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728863273) 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, 14785178 + ... + 14785835.

It is an arithmetic number, because the mean of its divisors is an integer number (1419408672).

Almost surely, 2^9728863277 is an apocalyptic number.

It is an amenable number.

9728863277 is a deficient number, since it is larger than the sum of its proper divisors (1626406099).

9728863277 is a wasteful number, since it uses less digits than its factorization.

9728863277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29571067.

The product of its digits is 14224896, while the sum is 59.

The square root of 9728863277 is about 98635.0002635981. Note that the first 3 decimals coincide. The cubic root of 9728863277 is about 2134.7844632109.

The spelling of 9728863277 in words is "nine billion, seven hundred twenty-eight million, eight hundred sixty-three thousand, two hundred seventy-seven".