27098989 has 4 divisors (see below), whose sum is σ = 27250560. Its totient is φ = 26947420.

The previous prime is 27098983. The next prime is 27098993. The reversal of 27098989 is 98989072.

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 27098989 - 2¹³ = 27090797 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27098983) 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, 75517 + ... + 75874.

It is an arithmetic number, because the mean of its divisors is an integer number (6812640).

Almost surely, 2^27098989 is an apocalyptic number.

It is an amenable number.

27098989 is a deficient number, since it is larger than the sum of its proper divisors (151571).

27098989 is a wasteful number, since it uses less digits than its factorization.

27098989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151570.

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 27098989 is about 5205.6689291579. The cubic root of 27098989 is about 300.3661787877.

The spelling of 27098989 in words is "twenty-seven million, ninety-eight thousand, nine hundred eighty-nine".