28114925 has 6 divisors (see below), whose sum is σ = 34862538. Its totient is φ = 22491920.

The previous prime is 28114913. The next prime is 28114939. The reversal of 28114925 is 52941182.

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 28111204 = 61^2 + 5302^2 .

It is not a de Polignac number, because 28114925 - 2⁴ = 28114909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28114891 and 28114900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562274 + ... + 562323.

It is an arithmetic number, because the mean of its divisors is an integer number (5810423).

Almost surely, 2^28114925 is an apocalyptic number.

28114925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28114925 is a deficient number, since it is larger than the sum of its proper divisors (6747613).

28114925 is a wasteful number, since it uses less digits than its factorization.

28114925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124607 (or 1124602 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 28114925 is about 5302.3508937074. The cubic root of 28114925 is about 304.0737824432.

The spelling of 28114925 in words is "twenty-eight million, one hundred fourteen thousand, nine hundred twenty-five".