27620890 has 16 divisors (see below), whose sum is σ = 54237600. Its totient is φ = 10043920.

The previous prime is 27620881. The next prime is 27620893. The reversal of 27620890 is 9802672.

It is not an unprimeable number, because it can be changed into a prime (27620893) by changing a digit.

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, 125440 + ... + 125659.

It is an arithmetic number, because the mean of its divisors is an integer number (3389850).

Almost surely, 2^27620890 is an apocalyptic number.

27620890 is a deficient number, since it is larger than the sum of its proper divisors (26616710).

27620890 is a wasteful number, since it uses less digits than its factorization.

27620890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251117.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 27620890 is about 5255.5580103353. The cubic root of 27620890 is about 302.2821873055.

The spelling of 27620890 in words is "twenty-seven million, six hundred twenty thousand, eight hundred ninety".