383257 has 4 divisors (see below), whose sum is σ = 438016. Its totient is φ = 328500.

The previous prime is 383221. The next prime is 383261. The reversal of 383257 is 752383.

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 383257 - 2¹¹ = 381209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383267) 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, 27369 + ... + 27382.

It is an arithmetic number, because the mean of its divisors is an integer number (109504).

2³⁸³²⁵⁷ is an apocalyptic number.

It is an amenable number.

383257 is a deficient number, since it is larger than the sum of its proper divisors (54759).

383257 is an equidigital number, since it uses as much as digits as its factorization.

383257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54758.

The product of its digits is 5040, while the sum is 28.

The square root of 383257 is about 619.0775395700. The cubic root of 383257 is about 72.6379142578.

The spelling of 383257 in words is "three hundred eighty-three thousand, two hundred fifty-seven".