8213707 has 4 divisors (see below), whose sum is σ = 8219736. Its totient is φ = 8207680.

The previous prime is 8213693. The next prime is 8213717. The reversal of 8213707 is 7073128.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8213707 - 2¹¹ = 8211659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8213717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (2054934).

Almost surely, 2^8213707 is an apocalyptic number.

8213707 is a deficient number, since it is larger than the sum of its proper divisors (6029).

8213707 is a wasteful number, since it uses less digits than its factorization.

8213707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 8213707 is about 2865.9565593358. The cubic root of 8213707 is about 201.7652650232.

The spelling of 8213707 in words is "eight million, two hundred thirteen thousand, seven hundred seven".