27245816 has 32 divisors (see below), whose sum is σ = 56064960. Its totient is φ = 12335232.

The previous prime is 27245809. The next prime is 27245821. The reversal of 27245816 is 61854272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (1752030).

Almost surely, 2^27245816 is an apocalyptic number.

27245816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27245816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28032480).

27245816 is an abundant number, since it is smaller than the sum of its proper divisors (28819144).

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

27245816 is a wasteful number, since it uses less digits than its factorization.

27245816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015 (or 5011 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 27245816 is about 5219.7524845533. The cubic root of 27245816 is about 300.9076805798.

The spelling of 27245816 in words is "twenty-seven million, two hundred forty-five thousand, eight hundred sixteen".