27480399 has 8 divisors (see below), whose sum is σ = 36715392. Its totient is φ = 18282840.

The previous prime is 27480389. The next prime is 27480421. The reversal of 27480399 is 99308472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27480399 - 2⁵ = 27480367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27480399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27480329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7597 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (4589424).

Almost surely, 2^27480399 is an apocalyptic number.

27480399 is a deficient number, since it is larger than the sum of its proper divisors (9234993).

27480399 is a wasteful number, since it uses less digits than its factorization.

27480399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18717.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 27480399 is about 5242.1750256931. The cubic root of 27480399 is about 301.7688061420.

The spelling of 27480399 in words is "twenty-seven million, four hundred eighty thousand, three hundred ninety-nine".