27013620 has 24 divisors (see below), whose sum is σ = 75638304. Its totient is φ = 7203616.

The previous prime is 27013601. The next prime is 27013621. The reversal of 27013620 is 2631072.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27013621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225054 + ... + 225173.

It is an arithmetic number, because the mean of its divisors is an integer number (3151596).

Almost surely, 2^27013620 is an apocalyptic number.

27013620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27013620 is an abundant number, since it is smaller than the sum of its proper divisors (48624684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27013620 is a wasteful number, since it uses less digits than its factorization.

27013620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450239 (or 450237 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 27013620 is about 5197.4628425800. The cubic root of 27013620 is about 300.0504359647.

Adding to 27013620 its reverse (2631072), we get a palindrome (29644692).

The spelling of 27013620 in words is "twenty-seven million, thirteen thousand, six hundred twenty".