2053997 has 4 divisors (see below), whose sum is σ = 2240736. Its totient is φ = 1867260.

The previous prime is 2053979. The next prime is 2054009. The reversal of 2053997 is 7993502.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2053997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053927) 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, 93353 + ... + 93374.

It is an arithmetic number, because the mean of its divisors is an integer number (560184).

2^2053997 is an apocalyptic number.

It is an amenable number.

2053997 is a deficient number, since it is larger than the sum of its proper divisors (186739).

2053997 is a wasteful number, since it uses less digits than its factorization.

2053997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186738.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 2053997 is about 1433.1772395625. The cubic root of 2053997 is about 127.1159170652.

The spelling of 2053997 in words is "two million, fifty-three thousand, nine hundred ninety-seven".