27937998 has 24 divisors (see below), whose sum is σ = 66035736. Its totient is φ = 8466000.

The previous prime is 27937979. The next prime is 27938023. The reversal of 27937998 is 89973972.

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 11 ways as a sum of consecutive naturals, for example, 70353 + ... + 70748.

It is an arithmetic number, because the mean of its divisors is an integer number (2751489).

Almost surely, 2^27937998 is an apocalyptic number.

27937998 is an abundant number, since it is smaller than the sum of its proper divisors (38097738).

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

27937998 is a wasteful number, since it uses less digits than its factorization.

27937998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141120 (or 141117 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 27937998 is about 5285.6407369400. The cubic root of 27937998 is about 303.4345951284.

The spelling of 27937998 in words is "twenty-seven million, nine hundred thirty-seven thousand, nine hundred ninety-eight".