27136780 has 96 divisors (see below), whose sum is σ = 67350528. Its totient is φ = 9081600.

The previous prime is 27136771. The next prime is 27136789. The reversal of 27136780 is 8763172.

It is an interprime number because it is at equal distance from previous prime (27136771) and next prime (27136789).

It is not an unprimeable number, because it can be changed into a prime (27136789) 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 31 ways as a sum of consecutive naturals, for example, 156774 + ... + 156946.

It is an arithmetic number, because the mean of its divisors is an integer number (701568).

Almost surely, 2^27136780 is an apocalyptic number.

27136780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27136780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33675264).

27136780 is an abundant number, since it is smaller than the sum of its proper divisors (40213748).

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

27136780 is a wasteful number, since it uses less digits than its factorization.

27136780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 27136780 is about 5209.2974574313. The cubic root of 27136780 is about 300.5057395386.

The spelling of 27136780 in words is "twenty-seven million, one hundred thirty-six thousand, seven hundred eighty".