8213465 has 16 divisors (see below), whose sum is σ = 11240208. Its totient is φ = 5707776.

The previous prime is 8213459. The next prime is 8213479. The reversal of 8213465 is 5643128.

8213465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1175056 + 7038409 = 1084^2 + 2653^2 .

It is a cyclic number.

It is not a de Polignac number, because 8213465 - 2¹⁴ = 8197081 is a prime.

It is a super-2 number, since 2×8213465² = 134922014612450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2612 + ... + 4821.

It is an arithmetic number, because the mean of its divisors is an integer number (702513).

Almost surely, 2^8213465 is an apocalyptic number.

8213465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8213465 is a deficient number, since it is larger than the sum of its proper divisors (3026743).

8213465 is a wasteful number, since it uses less digits than its factorization.

8213465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468.

The product of its digits is 5760, while the sum is 29.

The square root of 8213465 is about 2865.9143392642. The cubic root of 8213465 is about 201.7632834708.

The spelling of 8213465 in words is "eight million, two hundred thirteen thousand, four hundred sixty-five".