27679940 has 24 divisors (see below), whose sum is σ = 58353792. Its totient is φ = 11028960.

The previous prime is 27679913. The next prime is 27679943. The reversal of 27679940 is 4997672.

It is a junction number, because it is equal to n+sod(n) for n = 27679891 and 27679900.

It is not an unprimeable number, because it can be changed into a prime (27679943) 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, 2867 + ... + 7973.

It is an arithmetic number, because the mean of its divisors is an integer number (2431408).

Almost surely, 2^27679940 is an apocalyptic number.

27679940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27679940 is an abundant number, since it is smaller than the sum of its proper divisors (30673852).

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

27679940 is a wasteful number, since it uses less digits than its factorization.

27679940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387 (or 5385 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 27679940 is about 5261.1728730389. The cubic root of 27679940 is about 302.4974477849.

The spelling of 27679940 in words is "twenty-seven million, six hundred seventy-nine thousand, nine hundred forty".