27627640 has 32 divisors (see below), whose sum is σ = 62622000. Its totient is φ = 10969344.

The previous prime is 27627631. The next prime is 27627661. The reversal of 27627640 is 4672672.

It is a junction number, because it is equal to n+sod(n) for n = 27627596 and 27627605.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3076 + ... + 8044.

Almost surely, 2^27627640 is an apocalyptic number.

27627640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27627640 is an abundant number, since it is smaller than the sum of its proper divisors (34994360).

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

27627640 is a wasteful number, since it uses less digits than its factorization.

27627640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 27627640 is about 5256.2001483962. The cubic root of 27627640 is about 302.3068092321.

The spelling of 27627640 in words is "twenty-seven million, six hundred twenty-seven thousand, six hundred forty".