27924479 has 4 divisors (see below), whose sum is σ = 30463080. Its totient is φ = 25385880.

The previous prime is 27924469. The next prime is 27924487. The reversal of 27924479 is 97442972.

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 27924479 - 2⁸ = 27924223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27924409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269284 + ... + 1269305.

It is an arithmetic number, because the mean of its divisors is an integer number (7615770).

Almost surely, 2^27924479 is an apocalyptic number.

27924479 is a deficient number, since it is larger than the sum of its proper divisors (2538601).

27924479 is a wasteful number, since it uses less digits than its factorization.

27924479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538600.

The product of its digits is 254016, while the sum is 44.

The square root of 27924479 is about 5284.3617400780. The cubic root of 27924479 is about 303.3856439457.

The spelling of 27924479 in words is "twenty-seven million, nine hundred twenty-four thousand, four hundred seventy-nine".