485622781 has 12 divisors (see below), whose sum is σ = 583132800. Its totient is φ = 402819480.

The previous prime is 485622763. The next prime is 485622793. The reversal of 485622781 is 187226584.

It is a happy number.

It is not a de Polignac number, because 485622781 - 2¹³ = 485614589 is a prime.

It is a super-2 number, since 2×485622781² = 471658970852347922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485622721) 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 11 ways as a sum of consecutive naturals, for example, 158331 + ... + 161368.

It is an arithmetic number, because the mean of its divisors is an integer number (48594400).

Almost surely, 2^485622781 is an apocalyptic number.

It is an amenable number.

485622781 is a deficient number, since it is larger than the sum of its proper divisors (97510019).

485622781 is a wasteful number, since it uses less digits than its factorization.

485622781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319744 (or 319737 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 485622781 is about 22036.8505236116. The cubic root of 485622781 is about 786.0189513222.

The spelling of 485622781 in words is "four hundred eighty-five million, six hundred twenty-two thousand, seven hundred eighty-one".