2075391 has 12 divisors (see below), whose sum is σ = 3032640. Its totient is φ = 1367520.

The previous prime is 2075387. The next prime is 2075393. The reversal of 2075391 is 1935702.

It is not a de Polignac number, because 2075391 - 2² = 2075387 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2075393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495 + ... + 2096.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

2^2075391 is an apocalyptic number.

2075391 is a deficient number, since it is larger than the sum of its proper divisors (957249).

2075391 is a wasteful number, since it uses less digits than its factorization.

2075391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2683 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2075391 is about 1440.6217407772. The cubic root of 2075391 is about 127.5557311147. Note that the first 3 decimals are identical.

The spelling of 2075391 in words is "two million, seventy-five thousand, three hundred ninety-one".