27948439 has 4 divisors (see below), whose sum is σ = 28133680. Its totient is φ = 27763200.

The previous prime is 27948433. The next prime is 27948461. The reversal of 27948439 is 93484972.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27948439 - 2⁷ = 27948311 is a prime.

It is a super-2 number, since 2×27948439² = 1562230485073442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27948433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92394 + ... + 92695.

It is an arithmetic number, because the mean of its divisors is an integer number (7033420).

Almost surely, 2^27948439 is an apocalyptic number.

27948439 is a deficient number, since it is larger than the sum of its proper divisors (185241).

27948439 is a wasteful number, since it uses less digits than its factorization.

27948439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185240.

The product of its digits is 435456, while the sum is 46.

The square root of 27948439 is about 5286.6283205839. The cubic root of 27948439 is about 303.4723903207.

The spelling of 27948439 in words is "twenty-seven million, nine hundred forty-eight thousand, four hundred thirty-nine".