385836761 has 4 divisors (see below), whose sum is σ = 386595300. Its totient is φ = 385078224.

The previous prime is 385836751. The next prime is 385836779. The reversal of 385836761 is 167638583.

It is a happy number.

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 165611161 + 220225600 = 12869^2 + 14840^2 .

It is a cyclic number.

It is not a de Polignac number, because 385836761 - 2⁶ = 385836697 is a prime.

It is a super-2 number, since 2×385836761² = 297740012277942242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385836751) 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, 378506 + ... + 379523.

It is an arithmetic number, because the mean of its divisors is an integer number (96648825).

Almost surely, 2^385836761 is an apocalyptic number.

It is an amenable number.

385836761 is a deficient number, since it is larger than the sum of its proper divisors (758539).

385836761 is an equidigital number, since it uses as much as digits as its factorization.

385836761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758538.

The product of its digits is 725760, while the sum is 47.

The square root of 385836761 is about 19642.7279419128. The cubic root of 385836761 is about 728.0052888005.

The spelling of 385836761 in words is "three hundred eighty-five million, eight hundred thirty-six thousand, seven hundred sixty-one".