8490481479 has 28 divisors (see below), whose sum is σ = 13478736096. Its totient is φ = 5327353152.

The previous prime is 8490481421. The next prime is 8490481561. The reversal of 8490481479 is 9741840948.

8490481479 is a `hidden beast` number, since 8 + 4 + 90 + 4 + 81 + 479 = 666.

It is not a de Polignac number, because 8490481479 - 2¹² = 8490477383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8490481079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 330159 + ... + 354944.

It is an arithmetic number, because the mean of its divisors is an integer number (481383432).

Almost surely, 2^8490481479 is an apocalyptic number.

8490481479 is a deficient number, since it is larger than the sum of its proper divisors (4988254617).

8490481479 is an equidigital number, since it uses as much as digits as its factorization.

8490481479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685138 (or 685123 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 8490481479 is about 92143.8086851200. The cubic root of 8490481479 is about 2040.0654758396.

The spelling of 8490481479 in words is "eight billion, four hundred ninety million, four hundred eighty-one thousand, four hundred seventy-nine".