27716540 has 12 divisors (see below), whose sum is σ = 58204776. Its totient is φ = 11086608.

The previous prime is 27716519. The next prime is 27716543. The reversal of 27716540 is 4561772.

It is a junction number, because it is equal to n+sod(n) for n = 27716497 and 27716506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27716543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692894 + ... + 692933.

It is an arithmetic number, because the mean of its divisors is an integer number (4850398).

Almost surely, 2^27716540 is an apocalyptic number.

27716540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27716540 is an abundant number, since it is smaller than the sum of its proper divisors (30488236).

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

27716540 is a wasteful number, since it uses less digits than its factorization.

27716540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385836 (or 1385834 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 27716540 is about 5264.6500358523. The cubic root of 27716540 is about 302.6307155403.

The spelling of 27716540 in words is "twenty-seven million, seven hundred sixteen thousand, five hundred forty".