27973025 has 6 divisors (see below), whose sum is σ = 34686582. Its totient is φ = 22378400.

The previous prime is 27973013. The next prime is 27973027. The reversal of 27973025 is 52037972.

It can be written as a sum of positive squares in 3 ways, for example, as 6145441 + 21827584 = 2479^2 + 4672^2 .

It is not a de Polignac number, because 27973025 - 2⁶ = 27972961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27973027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559436 + ... + 559485.

It is an arithmetic number, because the mean of its divisors is an integer number (5781097).

Almost surely, 2^27973025 is an apocalyptic number.

27973025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27973025 is a deficient number, since it is larger than the sum of its proper divisors (6713557).

27973025 is a wasteful number, since it uses less digits than its factorization.

27973025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118931 (or 1118926 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 27973025 is about 5288.9531100209. The cubic root of 27973025 is about 303.5613515851.

The spelling of 27973025 in words is "twenty-seven million, nine hundred seventy-three thousand, twenty-five".