28114825 has 6 divisors (see below), whose sum is σ = 34862414. Its totient is φ = 22491840.

The previous prime is 28114811. The next prime is 28114837. The reversal of 28114825 is 52841182.

It can be written as a sum of positive squares in 3 ways, for example, as 109561 + 28005264 = 331^2 + 5292^2 .

It is a de Polignac number, because none of the positive numbers 2^k-28114825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562272 + ... + 562321.

Almost surely, 2^28114825 is an apocalyptic number.

28114825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28114825 is a deficient number, since it is larger than the sum of its proper divisors (6747589).

28114825 is a wasteful number, since it uses less digits than its factorization.

28114825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124603 (or 1124598 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 28114825 is about 5302.3414639195. The cubic root of 28114825 is about 304.0734219299.

The spelling of 28114825 in words is "twenty-eight million, one hundred fourteen thousand, eight hundred twenty-five".