385724 has 6 divisors (see below), whose sum is σ = 675024. Its totient is φ = 192860.

The previous prime is 385709. The next prime is 385739. The reversal of 385724 is 427583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (385709) and next prime (385739).

It is a congruent number.

It is an unprimeable number.

385724 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 48212 + ... + 48219.

It is an arithmetic number, because the mean of its divisors is an integer number (112504).

2³⁸⁵⁷²⁴ is an apocalyptic number.

It is an amenable number.

385724 is a deficient number, since it is larger than the sum of its proper divisors (289300).

385724 is a wasteful number, since it uses less digits than its factorization.

385724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96435 (or 96433 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 385724 is about 621.0668241019. The cubic root of 385724 is about 72.7934361912.

The spelling of 385724 in words is "three hundred eighty-five thousand, seven hundred twenty-four".