385523 has 4 divisors (see below), whose sum is σ = 394968. Its totient is φ = 376080.

The previous prime is 385519. The next prime is 385531. The reversal of 385523 is 325583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385523 - 2² = 385519 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 385492 and 385501.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 385523.

It is not an unprimeable number, because it can be changed into a prime (385573) 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, 4661 + ... + 4742.

It is an arithmetic number, because the mean of its divisors is an integer number (98742).

2³⁸⁵⁵²³ is an apocalyptic number.

385523 is a deficient number, since it is larger than the sum of its proper divisors (9445).

385523 is an equidigital number, since it uses as much as digits as its factorization.

385523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9444.

The product of its digits is 3600, while the sum is 26.

The square root of 385523 is about 620.9049846796. The cubic root of 385523 is about 72.7807898233.

The spelling of 385523 in words is "three hundred eighty-five thousand, five hundred twenty-three".