385613 has 4 divisors (see below), whose sum is σ = 398940. Its totient is φ = 372288.

The previous prime is 385607. The next prime is 385621. The reversal of 385613 is 316583.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 316969 = 262^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 385613 - 2⁴ = 385597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385663) 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, 6620 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (99735).

2³⁸⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

385613 is a deficient number, since it is larger than the sum of its proper divisors (13327).

385613 is a wasteful number, since it uses less digits than its factorization.

385613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13326.

The product of its digits is 2160, while the sum is 26.

The square root of 385613 is about 620.9774553074. The cubic root of 385613 is about 72.7864529194.

The spelling of 385613 in words is "three hundred eighty-five thousand, six hundred thirteen".