27142917 has 4 divisors (see below), whose sum is σ = 36190560. Its totient is φ = 18095276.

The previous prime is 27142903. The next prime is 27142919. The reversal of 27142917 is 71924172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27142917 - 2⁴ = 27142901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27142919) 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, 4523817 + ... + 4523822.

It is an arithmetic number, because the mean of its divisors is an integer number (9047640).

Almost surely, 2^27142917 is an apocalyptic number.

It is an amenable number.

27142917 is a deficient number, since it is larger than the sum of its proper divisors (9047643).

27142917 is an equidigital number, since it uses as much as digits as its factorization.

27142917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9047642.

The product of its digits is 7056, while the sum is 33.

The square root of 27142917 is about 5209.8864670931. The cubic root of 27142917 is about 300.5283910189.

The spelling of 27142917 in words is "twenty-seven million, one hundred forty-two thousand, nine hundred seventeen".