8213020 has 12 divisors (see below), whose sum is σ = 17247384. Its totient is φ = 3285200.

The previous prime is 8212991. The next prime is 8213033. The reversal of 8213020 is 203128.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8212985 and 8213003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205306 + ... + 205345.

It is an arithmetic number, because the mean of its divisors is an integer number (1437282).

Almost surely, 2^8213020 is an apocalyptic number.

It is an amenable number.

8213020 is an abundant number, since it is smaller than the sum of its proper divisors (9034364).

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

8213020 is a wasteful number, since it uses less digits than its factorization.

8213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410660 (or 410658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 8213020 is about 2865.8367015586. The cubic root of 8213020 is about 201.7596396054.

Adding to 8213020 its reverse (203128), we get a palindrome (8416148).

The spelling of 8213020 in words is "eight million, two hundred thirteen thousand, twenty".