27976540 has 24 divisors (see below), whose sum is σ = 59275440. Its totient is φ = 11090688.

The previous prime is 27976537. The next prime is 27976547. The reversal of 27976540 is 4567972.

It is a junction number, because it is equal to n+sod(n) for n = 27976493 and 27976502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27976547) 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, 3930 + ... + 8449.

It is an arithmetic number, because the mean of its divisors is an integer number (2469810).

Almost surely, 2^27976540 is an apocalyptic number.

27976540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27976540 is an abundant number, since it is smaller than the sum of its proper divisors (31298900).

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

27976540 is a wasteful number, since it uses less digits than its factorization.

27976540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12501 (or 12499 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 27976540 is about 5289.2853959680. The cubic root of 27976540 is about 303.5740658990.

The spelling of 27976540 in words is "twenty-seven million, nine hundred seventy-six thousand, five hundred forty".