2355997 has 4 divisors (see below), whose sum is σ = 2692576. Its totient is φ = 2019420.

The previous prime is 2355973. The next prime is 2356001. The reversal of 2355997 is 7995532.

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 not a de Polignac number, because 2355997 - 2¹⁵ = 2323229 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 (2355917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168279 + ... + 168292.

It is an arithmetic number, because the mean of its divisors is an integer number (673144).

2^2355997 is an apocalyptic number.

It is an amenable number.

2355997 is a deficient number, since it is larger than the sum of its proper divisors (336579).

2355997 is an equidigital number, since it uses as much as digits as its factorization.

2355997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336578.

The product of its digits is 85050, while the sum is 40.

The square root of 2355997 is about 1534.9257311023. The cubic root of 2355997 is about 133.0632860667.

The spelling of 2355997 in words is "two million, three hundred fifty-five thousand, nine hundred ninety-seven".