27675990 has 24 divisors (see below), whose sum is σ = 71957808. Its totient is φ = 7380240.

The previous prime is 27675959. The next prime is 27676001. The reversal of 27675990 is 9957672.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 153666 + ... + 153845.

It is an arithmetic number, because the mean of its divisors is an integer number (2998242).

Almost surely, 2^27675990 is an apocalyptic number.

27675990 is an abundant number, since it is smaller than the sum of its proper divisors (44281818).

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

27675990 is a wasteful number, since it uses less digits than its factorization.

27675990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307524 (or 307521 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 27675990 is about 5260.7974680651. The cubic root of 27675990 is about 302.4830580408.

The spelling of 27675990 in words is "twenty-seven million, six hundred seventy-five thousand, nine hundred ninety".