2389285 has 4 divisors (see below), whose sum is σ = 2867148. Its totient is φ = 1911424.

The previous prime is 2389279. The next prime is 2389297. The reversal of 2389285 is 5829832.

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 1747684 + 641601 = 1322^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2389285 - 2¹¹ = 2387237 is a prime.

It is a super-2 number, since 2×2389285² = 11417365622450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2389285 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238924 + ... + 238933.

It is an arithmetic number, because the mean of its divisors is an integer number (716787).

2^2389285 is an apocalyptic number.

It is an amenable number.

2389285 is a deficient number, since it is larger than the sum of its proper divisors (477863).

2389285 is an equidigital number, since it uses as much as digits as its factorization.

2389285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477862.

The product of its digits is 34560, while the sum is 37.

The square root of 2389285 is about 1545.7312185500. The cubic root of 2389285 is about 133.6870434776.

The spelling of 2389285 in words is "two million, three hundred eighty-nine thousand, two hundred eighty-five".