27398070 has 96 divisors (see below), whose sum is σ = 82225728. Its totient is φ = 6200064.

The previous prime is 27398047. The next prime is 27398071. The reversal of 27398070 is 7089372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27398071) 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 47 ways as a sum of consecutive naturals, for example, 98772 + ... + 99048.

It is an arithmetic number, because the mean of its divisors is an integer number (856518).

Almost surely, 2^27398070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27398070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41112864).

27398070 is an abundant number, since it is smaller than the sum of its proper divisors (54827658).

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

27398070 is a wasteful number, since it uses less digits than its factorization.

27398070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 27398070 is about 5234.3165743008. The cubic root of 27398070 is about 301.4671465733.

The spelling of 27398070 in words is "twenty-seven million, three hundred ninety-eight thousand, seventy".