385906753 has 4 divisors (see below), whose sum is σ = 386384580. Its totient is φ = 385428928.

The previous prime is 385906751. The next prime is 385906769. The reversal of 385906753 is 357609583.

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 223293249 + 162613504 = 14943^2 + 12752^2 .

It is a cyclic number.

It is not a de Polignac number, because 385906753 - 2¹ = 385906751 is a prime.

It is a super-3 number, since 3×385906753³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385906751) 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, 237700 + ... + 239317.

It is an arithmetic number, because the mean of its divisors is an integer number (96596145).

Almost surely, 2^385906753 is an apocalyptic number.

It is an amenable number.

385906753 is a deficient number, since it is larger than the sum of its proper divisors (477827).

385906753 is an equidigital number, since it uses as much as digits as its factorization.

385906753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477826.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 385906753 is about 19644.5094873860. The cubic root of 385906753 is about 728.0493069540.

The spelling of 385906753 in words is "three hundred eighty-five million, nine hundred six thousand, seven hundred fifty-three".