27955975 has 12 divisors (see below), whose sum is σ = 34734880. Its totient is φ = 22320000.

The previous prime is 27955957. The next prime is 27955987. The reversal of 27955975 is 57955972.

It is a de Polignac number, because none of the positive numbers 2^k-27955975 is a prime.

Its product of digits (992250) is a multiple of the sum of its prime factors (2250).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18031 + ... + 19519.

Almost surely, 2^27955975 is an apocalyptic number.

27955975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27955975 is a deficient number, since it is larger than the sum of its proper divisors (6778905).

27955975 is a wasteful number, since it uses less digits than its factorization.

27955975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2245 counting only the distinct ones).

The product of its digits is 992250, while the sum is 49.

The square root of 27955975 is about 5287.3410141583. The cubic root of 27955975 is about 303.4996639061.

The spelling of 27955975 in words is "twenty-seven million, nine hundred fifty-five thousand, nine hundred seventy-five".