2088389 has 4 divisors (see below), whose sum is σ = 2094924. Its totient is φ = 2081856.

The previous prime is 2088367. The next prime is 2088403. The reversal of 2088389 is 9838802.

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 688900 + 1399489 = 830^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 2088389 - 2⁸ = 2088133 is a prime.

It is a super-2 number, since 2×2088389² = 8722737230642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2088329) 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, 2762 + ... + 3435.

It is an arithmetic number, because the mean of its divisors is an integer number (523731).

2^2088389 is an apocalyptic number.

It is an amenable number.

2088389 is a deficient number, since it is larger than the sum of its proper divisors (6535).

2088389 is an equidigital number, since it uses as much as digits as its factorization.

2088389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6534.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 2088389 is about 1445.1259460684. The cubic root of 2088389 is about 127.8214674096.

The spelling of 2088389 in words is "two million, eighty-eight thousand, three hundred eighty-nine".