8214340690 has 8 divisors (see below), whose sum is σ = 14785813260. Its totient is φ = 3285736272.

The previous prime is 8214340679. The next prime is 8214340751. The reversal of 8214340690 is 960434128.

It is a Cunningham number, because it is equal to 90633²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 8214340689 + 1 = 90633^2 + 1^2 .

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

It is a super-2 number, since 2×8214340690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410717025 + ... + 410717044.

Almost surely, 2^8214340690 is an apocalyptic number.

8214340690 is a deficient number, since it is larger than the sum of its proper divisors (6571472570).

8214340690 is a wasteful number, since it uses less digits than its factorization.

8214340690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821434076.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 8214340690 is about 90633.0000055168. Note that the first 5 decimals coincide. The cubic root of 8214340690 is about 2017.7045364039.

The spelling of 8214340690 in words is "eight billion, two hundred fourteen million, three hundred forty thousand, six hundred ninety".