27401513 has 4 divisors (see below), whose sum is σ = 27418368. Its totient is φ = 27384660.

The previous prime is 27401509. The next prime is 27401519. The reversal of 27401513 is 31510472.

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 27401513 - 2² = 27401509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27401519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5693 + ... + 9338.

It is an arithmetic number, because the mean of its divisors is an integer number (6854592).

Almost surely, 2^27401513 is an apocalyptic number.

It is an amenable number.

27401513 is a deficient number, since it is larger than the sum of its proper divisors (16855).

27401513 is a wasteful number, since it uses less digits than its factorization.

27401513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16854.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 27401513 is about 5234.6454512221. The cubic root of 27401513 is about 301.4797740796.

Adding to 27401513 its reverse (31510472), we get a palindrome (58911985).

The spelling of 27401513 in words is "twenty-seven million, four hundred one thousand, five hundred thirteen".