28625895 has 24 divisors (see below), whose sum is σ = 49768992. Its totient is φ = 15220800.

The previous prime is 28625893. The next prime is 28625899. The reversal of 28625895 is 59852682.

28625895 is a `hidden beast` number, since 2 + 8 + 62 + 589 + 5 = 666.

It is not a de Polignac number, because 28625895 - 2¹ = 28625893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28625895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28625893) 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, 18190 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (2073708).

Almost surely, 2^28625895 is an apocalyptic number.

28625895 is a deficient number, since it is larger than the sum of its proper divisors (21143097).

28625895 is a wasteful number, since it uses less digits than its factorization.

28625895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1940 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28625895 is about 5350.3172803115. The cubic root of 28625895 is about 305.9048467440.

The spelling of 28625895 in words is "twenty-eight million, six hundred twenty-five thousand, eight hundred ninety-five".