27398801 has 4 divisors (see below), whose sum is σ = 27476772. Its totient is φ = 27320832.

The previous prime is 27398753. The next prime is 27398803. The reversal of 27398801 is 10889372.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14258176 + 13140625 = 3776^2 + 3625^2 .

It is a cyclic number.

It is not a de Polignac number, because 27398801 - 2⁶ = 27398737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27398803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38456 + ... + 39161.

It is an arithmetic number, because the mean of its divisors is an integer number (6869193).

Almost surely, 2^27398801 is an apocalyptic number.

It is an amenable number.

27398801 is a deficient number, since it is larger than the sum of its proper divisors (77971).

27398801 is an equidigital number, since it uses as much as digits as its factorization.

27398801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77970.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 27398801 is about 5234.3864014801. The cubic root of 27398801 is about 301.4698276687.

The spelling of 27398801 in words is "twenty-seven million, three hundred ninety-eight thousand, eight hundred one".