27198613 has 8 divisors (see below), whose sum is σ = 29516256. Its totient is φ = 24913200.

The previous prime is 27198599. The next prime is 27198629. The reversal of 27198613 is 31689172.

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

It is not a de Polignac number, because 27198613 - 2¹⁷ = 27067541 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 (27198643) 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, 6283 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (3689532).

Almost surely, 2^27198613 is an apocalyptic number.

It is an amenable number.

27198613 is a deficient number, since it is larger than the sum of its proper divisors (2317643).

27198613 is a wasteful number, since it uses less digits than its factorization.

27198613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16115.

The product of its digits is 18144, while the sum is 37.

The square root of 27198613 is about 5215.2289499120. The cubic root of 27198613 is about 300.7338073296.

The spelling of 27198613 in words is "twenty-seven million, one hundred ninety-eight thousand, six hundred thirteen".