28627575 has 24 divisors (see below), whose sum is σ = 50117328. Its totient is φ = 14369280.

The previous prime is 28627549. The next prime is 28627583. The reversal of 28627575 is 57572682.

It is not a de Polignac number, because 28627575 - 2⁹ = 28627063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9952 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (2088222).

Almost surely, 2^28627575 is an apocalyptic number.

28627575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28627575 is a deficient number, since it is larger than the sum of its proper divisors (21489753).

28627575 is a wasteful number, since it uses less digits than its factorization.

28627575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22483 (or 22478 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 28627575 is about 5350.4742780430. The cubic root of 28627575 is about 305.9108309538.

The spelling of 28627575 in words is "twenty-eight million, six hundred twenty-seven thousand, five hundred seventy-five".