8213493 has 8 divisors (see below), whose sum is σ = 11105856. Its totient is φ = 5398400.

The previous prime is 8213479. The next prime is 8213497. The reversal of 8213493 is 3943128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8213493 - 2¹⁷ = 8082421 is a prime.

It is a super-2 number, since 2×8213493² = 134922934522098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8213493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8213497) 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, 19068 + ... + 19493.

It is an arithmetic number, because the mean of its divisors is an integer number (1388232).

Almost surely, 2^8213493 is an apocalyptic number.

It is an amenable number.

8213493 is a deficient number, since it is larger than the sum of its proper divisors (2892363).

8213493 is a wasteful number, since it uses less digits than its factorization.

8213493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38635.

The product of its digits is 5184, while the sum is 30.

The square root of 8213493 is about 2865.9192242630. The cubic root of 8213493 is about 201.7635127433.

The spelling of 8213493 in words is "eight million, two hundred thirteen thousand, four hundred ninety-three".