8712687069 has 12 divisors (see below), whose sum is σ = 12657740316. Its totient is φ = 5774882112.

The previous prime is 8712686977. The next prime is 8712687079. The reversal of 8712687069 is 9607862178.

It can be written as a sum of positive squares in 2 ways, for example, as 6330270969 + 2382416100 = 79563^2 + 48810^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8712687069 is a prime.

It is a super-2 number, since 2×8712687069² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8712687079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2796352 + ... + 2799465.

It is an arithmetic number, because the mean of its divisors is an integer number (1054811693).

Almost surely, 2^8712687069 is an apocalyptic number.

It is an amenable number.

8712687069 is a deficient number, since it is larger than the sum of its proper divisors (3945053247).

8712687069 is a wasteful number, since it uses less digits than its factorization.

8712687069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595996 (or 5595993 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 8712687069 is about 93341.7755830689. The cubic root of 8712687069 is about 2057.7093863000.

The spelling of 8712687069 in words is "eight billion, seven hundred twelve million, six hundred eighty-seven thousand, sixty-nine".