27700120 has 32 divisors (see below), whose sum is σ = 71229600. Its totient is φ = 9497088.

The previous prime is 27700111. The next prime is 27700139. The reversal of 27700120 is 2100772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49185 + ... + 49744.

It is an arithmetic number, because the mean of its divisors is an integer number (2225925).

Almost surely, 2^27700120 is an apocalyptic number.

27700120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27700120 is an abundant number, since it is smaller than the sum of its proper divisors (43529480).

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

27700120 is a wasteful number, since it uses less digits than its factorization.

27700120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98947 (or 98943 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 27700120 is about 5263.0903469350. The cubic root of 27700120 is about 302.5709416295.

Adding to 27700120 its reverse (2100772), we get a palindrome (29800892).

The spelling of 27700120 in words is "twenty-seven million, seven hundred thousand, one hundred twenty".