27949470 has 32 divisors (see below), whose sum is σ = 67713408. Its totient is φ = 7382688.

The previous prime is 27949469. The next prime is 27949487. The reversal of 27949470 is 7494972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144 + ... + 7563.

It is an arithmetic number, because the mean of its divisors is an integer number (2116044).

Almost surely, 2^27949470 is an apocalyptic number.

27949470 is an abundant number, since it is smaller than the sum of its proper divisors (39763938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27949470 is a wasteful number, since it uses less digits than its factorization.

27949470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8824.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 27949470 is about 5286.7258298497. The cubic root of 27949470 is about 303.4761219088.

The spelling of 27949470 in words is "twenty-seven million, nine hundred forty-nine thousand, four hundred seventy".