27933947 has 2 divisors, whose sum is σ = 27933948. Its totient is φ = 27933946.

The previous prime is 27933881. The next prime is 27933959. The reversal of 27933947 is 74933972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27933947 - 2⁸ = 27933691 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 27933898 and 27933907.

It is not a weakly prime, because it can be changed into another prime (27933967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13966973 + 13966974.

It is an arithmetic number, because the mean of its divisors is an integer number (13966974).

Almost surely, 2^27933947 is an apocalyptic number.

27933947 is a deficient number, since it is larger than the sum of its proper divisors (1).

27933947 is an equidigital number, since it uses as much as digits as its factorization.

27933947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 27933947 is about 5285.2575150129. The cubic root of 27933947 is about 303.4199284492.

The spelling of 27933947 in words is "twenty-seven million, nine hundred thirty-three thousand, nine hundred forty-seven".