8002840691 has 2 divisors, whose sum is σ = 8002840692. Its totient is φ = 8002840690.

The previous prime is 8002840673. The next prime is 8002840711. The reversal of 8002840691 is 1960482008.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8002840691 is a prime.

It is not a weakly prime, because it can be changed into another prime (8002840291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4001420345 + 4001420346.

It is an arithmetic number, because the mean of its divisors is an integer number (4001420346).

Almost surely, 2^8002840691 is an apocalyptic number.

8002840691 is a deficient number, since it is larger than the sum of its proper divisors (1).

8002840691 is an equidigital number, since it uses as much as digits as its factorization.

8002840691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 8002840691 is about 89458.5976360014. The cubic root of 8002840691 is about 2000.2366962363.

The spelling of 8002840691 in words is "eight billion, two million, eight hundred forty thousand, six hundred ninety-one".