27953397 has 16 divisors (see below), whose sum is σ = 42377280. Its totient is φ = 18201456.

The previous prime is 27953383. The next prime is 27953399. The reversal of 27953397 is 79335972.

27953397 is a `hidden beast` number, since 27 + 9 + 533 + 97 = 666.

It is not a de Polignac number, because 27953397 - 2⁴ = 27953381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27953399) 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 15 ways as a sum of consecutive naturals, for example, 10878 + ... + 13199.

It is an arithmetic number, because the mean of its divisors is an integer number (2648580).

Almost surely, 2^27953397 is an apocalyptic number.

27953397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

27953397 is a deficient number, since it is larger than the sum of its proper divisors (14423883).

27953397 is a wasteful number, since it uses less digits than its factorization.

27953397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24129 (or 24123 counting only the distinct ones).

The product of its digits is 357210, while the sum is 45.

The square root of 27953397 is about 5287.0972187014. The cubic root of 27953397 is about 303.4903344016.

The spelling of 27953397 in words is "twenty-seven million, nine hundred fifty-three thousand, three hundred ninety-seven".