2097957 has 4 divisors (see below), whose sum is σ = 2797280. Its totient is φ = 1398636.

The previous prime is 2097941. The next prime is 2097959. The reversal of 2097957 is 7597902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2097957 - 2⁴ = 2097941 is a prime.

It is a D-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 (2097959) 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, 349657 + ... + 349662.

It is an arithmetic number, because the mean of its divisors is an integer number (699320).

2^2097957 is an apocalyptic number.

It is an amenable number.

2097957 is a deficient number, since it is larger than the sum of its proper divisors (699323).

2097957 is an equidigital number, since it uses as much as digits as its factorization.

2097957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699322.

The product of its (nonzero) digits is 39690, while the sum is 39.

The square root of 2097957 is about 1448.4326011244. The cubic root of 2097957 is about 128.0163756718.

Subtracting 2097957 from its reverse (7597902), we obtain a palindrome (5499945).

The spelling of 2097957 in words is "two million, ninety-seven thousand, nine hundred fifty-seven".