8006838394 has 4 divisors (see below), whose sum is σ = 12010257594. Its totient is φ = 4003419196.

The previous prime is 8006838383. The next prime is 8006838403. The reversal of 8006838394 is 4938386008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7236054225 + 770784169 = 85065^2 + 27763^2 .

It is a super-2 number, since 2×8006838394² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001709597 + ... + 2001709600.

Almost surely, 2^8006838394 is an apocalyptic number.

8006838394 is a deficient number, since it is larger than the sum of its proper divisors (4003419200).

8006838394 is a wasteful number, since it uses less digits than its factorization.

8006838394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003419199.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 8006838394 is about 89480.9387188132. The cubic root of 8006838394 is about 2000.5697038700.

It can be divided in two parts, 8006 and 838394, that added together give a square (846400 = 920²).

The spelling of 8006838394 in words is "eight billion, six million, eight hundred thirty-eight thousand, three hundred ninety-four".