8086821667 has 16 divisors (see below), whose sum is σ = 8770604320. Its totient is φ = 7432300800.

The previous prime is 8086821661. The next prime is 8086821671. The reversal of 8086821667 is 7661286808.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8086821667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8086821661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36817 + ... + 132397.

It is an arithmetic number, because the mean of its divisors is an integer number (548162770).

Almost surely, 2^8086821667 is an apocalyptic number.

8086821667 is a deficient number, since it is larger than the sum of its proper divisors (683782653).

8086821667 is a wasteful number, since it uses less digits than its factorization.

8086821667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95734.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 8086821667 is about 89926.7572360974. The cubic root of 8086821667 is about 2007.2091219745.

The spelling of 8086821667 in words is "eight billion, eighty-six million, eight hundred twenty-one thousand, six hundred sixty-seven".