28360761 has 16 divisors (see below), whose sum is σ = 44425920. Its totient is φ = 15865920.

The previous prime is 28360757. The next prime is 28360789. The reversal of 28360761 is 16706382.

It is not a de Polignac number, because 28360761 - 2² = 28360757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28360361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32626 + ... + 33483.

It is an arithmetic number, because the mean of its divisors is an integer number (2776620).

Almost surely, 2^28360761 is an apocalyptic number.

It is an amenable number.

28360761 is a deficient number, since it is larger than the sum of its proper divisors (16065159).

28360761 is a wasteful number, since it uses less digits than its factorization.

28360761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66136.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 28360761 is about 5325.4822316857. The cubic root of 28360761 is about 304.9574822036.

The spelling of 28360761 in words is "twenty-eight million, three hundred sixty thousand, seven hundred sixty-one".