8387664061 has 4 divisors (see below), whose sum is σ = 9585901792. Its totient is φ = 7189426332.

The previous prime is 8387664059. The next prime is 8387664071. The reversal of 8387664061 is 1604667838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8387664061 - 2¹ = 8387664059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8387663996 and 8387664014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8387664001) 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, 599118855 + ... + 599118868.

It is an arithmetic number, because the mean of its divisors is an integer number (2396475448).

Almost surely, 2^8387664061 is an apocalyptic number.

It is an amenable number.

8387664061 is a deficient number, since it is larger than the sum of its proper divisors (1198237731).

8387664061 is a wasteful number, since it uses less digits than its factorization.

8387664061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198237730.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 8387664061 is about 91584.1911085096. The cubic root of 8387664061 is about 2031.7971305989.

The spelling of 8387664061 in words is "eight billion, three hundred eighty-seven million, six hundred sixty-four thousand, sixty-one".