8213516 has 36 divisors (see below), whose sum is σ = 15872472. Its totient is φ = 3704064.

The previous prime is 8213503. The next prime is 8213531. The reversal of 8213516 is 6153128.

It is a congruent number.

It is an unprimeable number.

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, 154946 + ... + 154998.

It is an arithmetic number, because the mean of its divisors is an integer number (440902).

Almost surely, 2^8213516 is an apocalyptic number.

8213516 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

8213516 is a deficient number, since it is larger than the sum of its proper divisors (7658956).

8213516 is a wasteful number, since it uses less digits than its factorization.

8213516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 115 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 8213516 is about 2865.9232369343. The cubic root of 8213516 is about 201.7637010739.

The spelling of 8213516 in words is "eight million, two hundred thirteen thousand, five hundred sixteen".