385653 has 4 divisors (see below), whose sum is σ = 514208. Its totient is φ = 257100.

The previous prime is 385639. The next prime is 385657. The reversal of 385653 is 356583.

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, and also an emirpimes, since its reverse is a distinct semiprime: 356583 = 3 ⋅118861.

It is not a de Polignac number, because 385653 - 2⁵ = 385621 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385657) 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, 64273 + ... + 64278.

It is an arithmetic number, because the mean of its divisors is an integer number (128552).

2³⁸⁵⁶⁵³ is an apocalyptic number.

It is an amenable number.

385653 is a deficient number, since it is larger than the sum of its proper divisors (128555).

385653 is a wasteful number, since it uses less digits than its factorization.

385653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128554.

The product of its digits is 10800, while the sum is 30.

The square root of 385653 is about 621.0096617606. The cubic root of 385653 is about 72.7889695682.

The spelling of 385653 in words is "three hundred eighty-five thousand, six hundred fifty-three".