9992765 has 16 divisors (see below), whose sum is σ = 12700800. Its totient is φ = 7526592.

The previous prime is 9992761. The next prime is 9992777. The reversal of 9992765 is 5672999.

Added to its reverse (5672999) it gives a square (15665764 = 3958²).

It is a cyclic number.

It is not a de Polignac number, because 9992765 - 2² = 9992761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27656 + ... + 28014.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^9992765 is an apocalyptic number.

9992765 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9992765 is a deficient number, since it is larger than the sum of its proper divisors (2708035).

9992765 is a wasteful number, since it uses less digits than its factorization.

9992765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676.

The product of its digits is 306180, while the sum is 47.

The square root of 9992765 is about 3161.1334992373. The cubic root of 9992765 is about 215.3914986844.

Adding to 9992765 its reverse (5672999), we get a square (15665764 = 3958²).

The spelling of 9992765 in words is "nine million, nine hundred ninety-two thousand, seven hundred sixty-five".