27932987 has 2 divisors, whose sum is σ = 27932988. Its totient is φ = 27932986.

The previous prime is 27932977. The next prime is 27933001. The reversal of 27932987 is 78923972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27932987 - 2⁸ = 27932731 is a prime.

It is not a weakly prime, because it can be changed into another prime (27932977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13966493 + 13966494.

It is an arithmetic number, because the mean of its divisors is an integer number (13966494).

Almost surely, 2^27932987 is an apocalyptic number.

27932987 is a deficient number, since it is larger than the sum of its proper divisors (1).

27932987 is an equidigital number, since it uses as much as digits as its factorization.

27932987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The square root of 27932987 is about 5285.1666955736. The cubic root of 27932987 is about 303.4164525534.

The spelling of 27932987 in words is "twenty-seven million, nine hundred thirty-two thousand, nine hundred eighty-seven".