27695920 has 120 divisors (see below), whose sum is σ = 78236064. Its totient is φ = 8930304.

The previous prime is 27695909. The next prime is 27695923. The reversal of 27695920 is 2959672.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (27695923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202092 + ... + 202228.

Almost surely, 2^27695920 is an apocalyptic number.

27695920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27695920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39118032).

27695920 is an abundant number, since it is smaller than the sum of its proper divisors (50540144).

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

27695920 is a wasteful number, since it uses less digits than its factorization.

27695920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 27695920 is about 5262.6913266883. The cubic root of 27695920 is about 302.5556485286. Note that the first 3 decimals are identical.

The spelling of 27695920 in words is "twenty-seven million, six hundred ninety-five thousand, nine hundred twenty".