27479917 has 8 divisors (see below), whose sum is σ = 29217024. Its totient is φ = 25788048.

The previous prime is 27479897. The next prime is 27479923. The reversal of 27479917 is 71997472.

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

It is a cyclic number.

It is not a de Polignac number, because 27479917 - 2¹⁵ = 27447149 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 (27479927) 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, 10053 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (3652128).

Almost surely, 2^27479917 is an apocalyptic number.

It is an amenable number.

27479917 is a deficient number, since it is larger than the sum of its proper divisors (1737107).

27479917 is a wasteful number, since it uses less digits than its factorization.

27479917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22619.

The product of its digits is 222264, while the sum is 46.

The square root of 27479917 is about 5242.1290522077. The cubic root of 27479917 is about 301.7670418127.

The spelling of 27479917 in words is "twenty-seven million, four hundred seventy-nine thousand, nine hundred seventeen".