9927765 has 24 divisors (see below), whose sum is σ = 17847648. Its totient is φ = 5294160.

The previous prime is 9927751. The next prime is 9927767. The reversal of 9927765 is 5677299.

It is not a de Polignac number, because 9927765 - 2⁵ = 9927733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a d-powerful number, because it can be written as 9⁵ + 9⁶ + 2²³ + 7³ + 7⁷ + 6⁶ + 5⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 9927765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9927767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2871 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (743652).

Almost surely, 2^9927765 is an apocalyptic number.

It is an amenable number.

9927765 is a deficient number, since it is larger than the sum of its proper divisors (7919883).

9927765 is an equidigital number, since it uses as much as digits as its factorization.

9927765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191 (or 8179 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 9927765 is about 3150.8356034551. The cubic root of 9927765 is about 214.9234629319.

The spelling of 9927765 in words is "nine million, nine hundred twenty-seven thousand, seven hundred sixty-five".