2306557 has 4 divisors (see below), whose sum is σ = 2516256. Its totient is φ = 2096860.

The previous prime is 2306531. The next prime is 2306561. The reversal of 2306557 is 7556032.

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 2306557 - 2¹⁹ = 1782269 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 (2306527) 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, 104833 + ... + 104854.

It is an arithmetic number, because the mean of its divisors is an integer number (629064).

2^2306557 is an apocalyptic number.

It is an amenable number.

2306557 is a deficient number, since it is larger than the sum of its proper divisors (209699).

2306557 is a wasteful number, since it uses less digits than its factorization.

2306557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209698.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 2306557 is about 1518.7353291472. The cubic root of 2306557 is about 132.1259320074.

The spelling of 2306557 in words is "two million, three hundred six thousand, five hundred fifty-seven".