8213470 has 16 divisors (see below), whose sum is σ = 14836608. Its totient is φ = 3273760.

The previous prime is 8213459. The next prime is 8213479. The reversal of 8213470 is 743128.

It is a super-2 number, since 2×8213470² = 134922178881800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (927288).

Almost surely, 2^8213470 is an apocalyptic number.

8213470 is a deficient number, since it is larger than the sum of its proper divisors (6623138).

8213470 is a wasteful number, since it uses less digits than its factorization.

8213470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 8213470 is about 2865.9152115860. The cubic root of 8213470 is about 201.7633244124.

Adding to 8213470 its reverse (743128), we get a palindrome (8956598).

The spelling of 8213470 in words is "eight million, two hundred thirteen thousand, four hundred seventy".