27449139 has 8 divisors (see below), whose sum is σ = 36628480. Its totient is φ = 18284616.

The previous prime is 27449137. The next prime is 27449141. The reversal of 27449139 is 93194472.

It is an interprime number because it is at equal distance from previous prime (27449137) and next prime (27449141).

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

It is not a de Polignac number, because 27449139 - 2¹ = 27449137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27449097 and 27449106.

It is not an unprimeable number, because it can be changed into a prime (27449137) 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, 1782 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (4578560).

Almost surely, 2^27449139 is an apocalyptic number.

27449139 is a deficient number, since it is larger than the sum of its proper divisors (9179341).

27449139 is a wasteful number, since it uses less digits than its factorization.

27449139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7409.

The product of its digits is 54432, while the sum is 39.

The square root of 27449139 is about 5239.1925904666. The cubic root of 27449139 is about 301.6543382255.

The spelling of 27449139 in words is "twenty-seven million, four hundred forty-nine thousand, one hundred thirty-nine".