8162500 has 36 divisors (see below), whose sum is σ = 17881668. Its totient is φ = 3260000.

The previous prime is 8162491. The next prime is 8162501. The reversal of 8162500 is 52618.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7496644 + 665856 = 2738^2 + 816^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8162501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12174 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (496713).

Almost surely, 2^8162500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8162500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8940834).

8162500 is an abundant number, since it is smaller than the sum of its proper divisors (9719168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8162500 is an equidigital number, since it uses as much as digits as its factorization.

8162500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8162500 is about 2857.0089254323. The cubic root of 8162500 is about 201.3450999171.

It can be divided in two parts, 81 and 62500, that multiplied together give a square (5062500 = 2250²).

The spelling of 8162500 in words is "eight million, one hundred sixty-two thousand, five hundred".