27490747 has 2 divisors, whose sum is σ = 27490748. Its totient is φ = 27490746.

The previous prime is 27490733. The next prime is 27490783. The reversal of 27490747 is 74709472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27490747 - 2¹⁵ = 27457979 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (27490247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13745373 + 13745374.

It is an arithmetic number, because the mean of its divisors is an integer number (13745374).

Almost surely, 2^27490747 is an apocalyptic number.

27490747 is a deficient number, since it is larger than the sum of its proper divisors (1).

27490747 is an equidigital number, since it uses as much as digits as its factorization.

27490747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 27490747 is about 5243.1619276921. The cubic root of 27490747 is about 301.8066793393.

The spelling of 27490747 in words is "twenty-seven million, four hundred ninety thousand, seven hundred forty-seven".