27420906 has 16 divisors (see below), whose sum is σ = 55053504. Its totient is φ = 9105024.

The previous prime is 27420893. The next prime is 27420907. The reversal of 27420906 is 60902472.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27420907) 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, 7111 + ... + 10266.

It is an arithmetic number, because the mean of its divisors is an integer number (3440844).

Almost surely, 2^27420906 is an apocalyptic number.

27420906 is an abundant number, since it is smaller than the sum of its proper divisors (27632598).

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

27420906 is a wasteful number, since it uses less digits than its factorization.

27420906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17645.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27420906 is about 5236.4974935543. The cubic root of 27420906 is about 301.5508798676.

The spelling of 27420906 in words is "twenty-seven million, four hundred twenty thousand, nine hundred six".