485903391 has 8 divisors (see below), whose sum is σ = 649942320. Its totient is φ = 322900032.

The previous prime is 485903389. The next prime is 485903399. The reversal of 485903391 is 193309584.

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

It is not a de Polignac number, because 485903391 - 2¹ = 485903389 is a prime.

It is a super-2 number, since 2×485903391² = 472204210770597762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485903399) 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 7 ways as a sum of consecutive naturals, for example, 257796 + ... + 259673.

It is an arithmetic number, because the mean of its divisors is an integer number (81242790).

Almost surely, 2^485903391 is an apocalyptic number.

485903391 is a deficient number, since it is larger than the sum of its proper divisors (164038929).

485903391 is a wasteful number, since it uses less digits than its factorization.

485903391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517785.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 485903391 is about 22043.2164395308. The cubic root of 485903391 is about 786.1703186775.

The spelling of 485903391 in words is "four hundred eighty-five million, nine hundred three thousand, three hundred ninety-one".