27420513 has 8 divisors (see below), whose sum is σ = 37452576. Its totient is φ = 17834400.

The previous prime is 27420509. The next prime is 27420529. The reversal of 27420513 is 31502472.

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

It is not a de Polignac number, because 27420513 - 2² = 27420509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27420583) 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, 111343 + ... + 111588.

It is an arithmetic number, because the mean of its divisors is an integer number (4681572).

Almost surely, 2^27420513 is an apocalyptic number.

It is an amenable number.

27420513 is a deficient number, since it is larger than the sum of its proper divisors (10032063).

27420513 is a wasteful number, since it uses less digits than its factorization.

27420513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222975.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 27420513 is about 5236.4599683374. The cubic root of 27420513 is about 301.5494392385.

Adding to 27420513 its reverse (31502472), we get a palindrome (58922985).

The spelling of 27420513 in words is "twenty-seven million, four hundred twenty thousand, five hundred thirteen".