27389998 has 4 divisors (see below), whose sum is σ = 41085000. Its totient is φ = 13694998.

The previous prime is 27389993. The next prime is 27390023. The reversal of 27389998 is 89998372.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27389993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6847498 + ... + 6847501.

It is an arithmetic number, because the mean of its divisors is an integer number (10271250).

Almost surely, 2^27389998 is an apocalyptic number.

27389998 is a deficient number, since it is larger than the sum of its proper divisors (13695002).

27389998 is a wasteful number, since it uses less digits than its factorization.

27389998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695001.

The product of its digits is 1959552, while the sum is 55.

The square root of 27389998 is about 5233.5454521768. The cubic root of 27389998 is about 301.4375376528.

The spelling of 27389998 in words is "twenty-seven million, three hundred eighty-nine thousand, nine hundred ninety-eight".