2355857 has 4 divisors (see below), whose sum is σ = 2692416. Its totient is φ = 2019300.

The previous prime is 2355853. The next prime is 2355883. The reversal of 2355857 is 7585532.

2355857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2355857 - 2² = 2355853 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 3⁸ + 5⁴ + 5⁶ + 8⁶ + 5⁹ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2355853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168269 + ... + 168282.

It is an arithmetic number, because the mean of its divisors is an integer number (673104).

2^2355857 is an apocalyptic number.

It is an amenable number.

2355857 is a deficient number, since it is larger than the sum of its proper divisors (336559).

2355857 is an equidigital number, since it uses as much as digits as its factorization.

2355857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336558.

The product of its digits is 42000, while the sum is 35.

The square root of 2355857 is about 1534.8801256124. The cubic root of 2355857 is about 133.0606503490.

The spelling of 2355857 in words is "two million, three hundred fifty-five thousand, eight hundred fifty-seven".