385503673 has 4 divisors (see below), whose sum is σ = 405793360. Its totient is φ = 365213988.

The previous prime is 385503661. The next prime is 385503691. The reversal of 385503673 is 376305583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385503673 is a prime.

It is a super-2 number, since 2×385503673² = 297226163792981858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385503973) 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, 10144815 + ... + 10144852.

It is an arithmetic number, because the mean of its divisors is an integer number (101448340).

Almost surely, 2^385503673 is an apocalyptic number.

It is an amenable number.

385503673 is a deficient number, since it is larger than the sum of its proper divisors (20289687).

385503673 is a wasteful number, since it uses less digits than its factorization.

385503673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289686.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 385503673 is about 19634.2474518378. The cubic root of 385503673 is about 727.7957358988.

The spelling of 385503673 in words is "three hundred eighty-five million, five hundred three thousand, six hundred seventy-three".