2085397 has 4 divisors (see below), whose sum is σ = 2088396. Its totient is φ = 2082400.

The previous prime is 2085379. The next prime is 2085409. The reversal of 2085397 is 7935802.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 358801 + 1726596 = 599^2 + 1314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085397 - 2¹⁵ = 2052629 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085367) 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, 147 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (522099).

2^2085397 is an apocalyptic number.

It is an amenable number.

2085397 is a deficient number, since it is larger than the sum of its proper divisors (2999).

2085397 is a wasteful number, since it uses less digits than its factorization.

2085397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2085397 is about 1444.0903711333. The cubic root of 2085397 is about 127.7603956752.

The spelling of 2085397 in words is "two million, eighty-five thousand, three hundred ninety-seven".