28492765 has 24 divisors (see below), whose sum is σ = 42119352. Its totient is φ = 18385920.

The previous prime is 28492757. The next prime is 28492769. The reversal of 28492765 is 56729482.

It can be written as a sum of positive squares in 4 ways, for example, as 9229444 + 19263321 = 3038^2 + 4389^2 .

It is not a de Polignac number, because 28492765 - 2³ = 28492757 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 (28492769) 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, 745 + ... + 7585.

It is an arithmetic number, because the mean of its divisors is an integer number (1754973).

Almost surely, 2^28492765 is an apocalyptic number.

It is an amenable number.

28492765 is a deficient number, since it is larger than the sum of its proper divisors (13626587).

28492765 is a wasteful number, since it uses less digits than its factorization.

28492765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877 (or 6870 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 28492765 is about 5337.8614631704. The cubic root of 28492765 is about 305.4298873982.

The spelling of 28492765 in words is "twenty-eight million, four hundred ninety-two thousand, seven hundred sixty-five".