10728765 has 12 divisors (see below), whose sum is σ = 18596604. Its totient is φ = 5721984.

The previous prime is 10728743. The next prime is 10728791. The reversal of 10728765 is 56782701.

It can be written as a sum of positive squares in 2 ways, for example, as 6937956 + 3790809 = 2634^2 + 1947^2 .

It is not a de Polignac number, because 10728765 - 2⁵ = 10728733 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119164 + ... + 119253.

It is an arithmetic number, because the mean of its divisors is an integer number (1549717).

Almost surely, 2^10728765 is an apocalyptic number.

10728765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10728765 is a deficient number, since it is larger than the sum of its proper divisors (7867839).

10728765 is a wasteful number, since it uses less digits than its factorization.

10728765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238428 (or 238425 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 10728765 is about 3275.4793542320. The cubic root of 10728765 is about 220.5548323382.

The spelling of 10728765 in words is "ten million, seven hundred twenty-eight thousand, seven hundred sixty-five".