385715 has 8 divisors (see below), whose sum is σ = 505008. Its totient is φ = 280480.

The previous prime is 385709. The next prime is 385739. The reversal of 385715 is 517583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385715 - 2¹⁰ = 384691 is a prime.

It is a super-2 number, since 2×385715² = 297552122450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable 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 in 7 ways as a sum of consecutive naturals, for example, 3452 + ... + 3561.

It is an arithmetic number, because the mean of its divisors is an integer number (63126).

385715 is a Friedman number, since it can be written as 8^5+7^(5+1)*3, using all its digits and the basic arithmetic operations.

2³⁸⁵⁷¹⁵ is an apocalyptic number.

385715 is a deficient number, since it is larger than the sum of its proper divisors (119293).

385715 is a wasteful number, since it uses less digits than its factorization.

385715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7029.

The product of its digits is 4200, while the sum is 29.

The square root of 385715 is about 621.0595784625. The cubic root of 385715 is about 72.7928700299.

The spelling of 385715 in words is "three hundred eighty-five thousand, seven hundred fifteen".