28601265 has 32 divisors (see below), whose sum is σ = 57056256. Its totient is φ = 11885760.

The previous prime is 28601257. The next prime is 28601269. The reversal of 28601265 is 56210682.

It is not a de Polignac number, because 28601265 - 2³ = 28601257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28601269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11227 + ... + 13536.

It is an arithmetic number, because the mean of its divisors is an integer number (1783008).

Almost surely, 2^28601265 is an apocalyptic number.

It is an amenable number.

28601265 is a deficient number, since it is larger than the sum of its proper divisors (28454991).

28601265 is a wasteful number, since it uses less digits than its factorization.

28601265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24789.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28601265 is about 5348.0150523348. The cubic root of 28601265 is about 305.8170870622.

The spelling of 28601265 in words is "twenty-eight million, six hundred one thousand, two hundred sixty-five".