2097945 has 24 divisors (see below), whose sum is σ = 3796416. Its totient is φ = 1069728.

The previous prime is 2097941. The next prime is 2097959. The reversal of 2097945 is 5497902.

It is not a de Polignac number, because 2097945 - 2² = 2097941 is a prime.

2097945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2097941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22 + ... + 2048.

It is an arithmetic number, because the mean of its divisors is an integer number (158184).

2^2097945 is an apocalyptic number.

It is an amenable number.

2097945 is a deficient number, since it is larger than the sum of its proper divisors (1698471).

2097945 is a wasteful number, since it uses less digits than its factorization.

2097945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2058 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 2097945 is about 1448.4284587096. The cubic root of 2097945 is about 128.0161315932.

The spelling of 2097945 in words is "two million, ninety-seven thousand, nine hundred forty-five".