27220985 has 8 divisors (see below), whose sum is σ = 35634816. Its totient is φ = 19797040.

The previous prime is 27220981. The next prime is 27220987. The reversal of 27220985 is 58902272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27220985 - 2² = 27220981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27220981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247409 + ... + 247518.

It is an arithmetic number, because the mean of its divisors is an integer number (4454352).

Almost surely, 2^27220985 is an apocalyptic number.

It is an amenable number.

27220985 is a deficient number, since it is larger than the sum of its proper divisors (8413831).

27220985 is a wasteful number, since it uses less digits than its factorization.

27220985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494943.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 27220985 is about 5217.3733813098. The cubic root of 27220985 is about 300.8162401224.

The spelling of 27220985 in words is "twenty-seven million, two hundred twenty thousand, nine hundred eighty-five".