8129485 has 32 divisors (see below), whose sum is σ = 12724992. Its totient is φ = 4838400.

The previous prime is 8129479. The next prime is 8129489. The reversal of 8129485 is 5849218.

It is not a de Polignac number, because 8129485 - 2³ = 8129477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8129489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7210 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (397656).

Almost surely, 2^8129485 is an apocalyptic number.

8129485 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8129485 is a deficient number, since it is larger than the sum of its proper divisors (4595507).

8129485 is a wasteful number, since it uses less digits than its factorization.

8129485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its digits is 23040, while the sum is 37.

The square root of 8129485 is about 2851.2251752536. The cubic root of 8129485 is about 201.0732718022.

The spelling of 8129485 in words is "eight million, one hundred twenty-nine thousand, four hundred eighty-five".