27740479 has 8 divisors (see below), whose sum is σ = 30321200. Its totient is φ = 25223616.

The previous prime is 27740473. The next prime is 27740497. The reversal of 27740479 is 97404772.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27740479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27740473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15054 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (3790150).

Almost surely, 2^27740479 is an apocalyptic number.

27740479 is a deficient number, since it is larger than the sum of its proper divisors (2580721).

27740479 is a wasteful number, since it uses less digits than its factorization.

27740479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31929.

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

The square root of 27740479 is about 5266.9231055712. The cubic root of 27740479 is about 302.7178186676.

The spelling of 27740479 in words is "twenty-seven million, seven hundred forty thousand, four hundred seventy-nine".