27963740 has 24 divisors (see below), whose sum is σ = 67113312. Its totient is φ = 9587520.

The previous prime is 27963721. The next prime is 27963751. The reversal of 27963740 is 4736972.

It is a junction number, because it is equal to n+sod(n) for n = 27963694 and 27963703.

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, 99731 + ... + 100010.

It is an arithmetic number, because the mean of its divisors is an integer number (2796388).

Almost surely, 2^27963740 is an apocalyptic number.

27963740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27963740 is an abundant number, since it is smaller than the sum of its proper divisors (39149572).

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

27963740 is a wasteful number, since it uses less digits than its factorization.

27963740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199757 (or 199755 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 27963740 is about 5288.0752642148. The cubic root of 27963740 is about 303.5277611403.

The spelling of 27963740 in words is "twenty-seven million, nine hundred sixty-three thousand, seven hundred forty".