385385723 has 4 divisors (see below), whose sum is σ = 402141648. Its totient is φ = 368629800.

The previous prime is 385385719. The next prime is 385385729. The reversal of 385385723 is 327583583.

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 385385723 - 2² = 385385719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385385729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8377928 + ... + 8377973.

It is an arithmetic number, because the mean of its divisors is an integer number (100535412).

Almost surely, 2^385385723 is an apocalyptic number.

385385723 is a deficient number, since it is larger than the sum of its proper divisors (16755925).

385385723 is a wasteful number, since it uses less digits than its factorization.

385385723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16755924.

The product of its digits is 604800, while the sum is 44.

The square root of 385385723 is about 19631.2435418646. The cubic root of 385385723 is about 727.7215020505.

The spelling of 385385723 in words is "three hundred eighty-five million, three hundred eighty-five thousand, seven hundred twenty-three".