27952749 has 16 divisors (see below), whose sum is σ = 45176640. Its totient is φ = 16940880.

The previous prime is 27952741. The next prime is 27952763. The reversal of 27952749 is 94725972.

It is not a de Polignac number, because 27952749 - 2³ = 27952741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27952741) 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, 46762 + ... + 47355.

It is an arithmetic number, because the mean of its divisors is an integer number (2823540).

Almost surely, 2^27952749 is an apocalyptic number.

It is an amenable number.

27952749 is a deficient number, since it is larger than the sum of its proper divisors (17223891).

27952749 is a wasteful number, since it uses less digits than its factorization.

27952749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94137 (or 94131 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 27952749 is about 5287.0359370823. The cubic root of 27952749 is about 303.4879892691.

The spelling of 27952749 in words is "twenty-seven million, nine hundred fifty-two thousand, seven hundred forty-nine".