27680925 has 12 divisors (see below), whose sum is σ = 45765920. Its totient is φ = 14763120.

The previous prime is 27680909. The next prime is 27680927. The reversal of 27680925 is 52908672.

It is a happy number.

It is not a de Polignac number, because 27680925 - 2⁴ = 27680909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27680927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184465 + ... + 184614.

Almost surely, 2^27680925 is an apocalyptic number.

27680925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27680925 is a deficient number, since it is larger than the sum of its proper divisors (18084995).

27680925 is a wasteful number, since it uses less digits than its factorization.

27680925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369092 (or 369087 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 27680925 is about 5261.2664825116. The cubic root of 27680925 is about 302.5010359002.

The spelling of 27680925 in words is "twenty-seven million, six hundred eighty thousand, nine hundred twenty-five".