8681207929 has 9 divisors (see below), whose sum is σ = 9077303109. Its totient is φ = 8301714300.

The previous prime is 8681207923. The next prime is 8681207959. The reversal of 8681207929 is 9297021868.

The square root of 8681207929 is 93173.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 8681207929 - 2¹¹ = 8681205881 is a prime.

It is a super-2 number, since 2×8681207929² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8681207923) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2140954 + ... + 2145004.

Almost surely, 2^8681207929 is an apocalyptic number.

8681207929 is the 93173-rd square number.

8681207929 is the 46587-th centered octagonal number.

It is an amenable number.

8681207929 is a deficient number, since it is larger than the sum of its proper divisors (396095180).

8681207929 is an frugal number, since it uses more digits than its factorization.

8681207929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148 (or 4074 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The cubic root of 8681207929 is about 2055.2282118395.

The spelling of 8681207929 in words is "eight billion, six hundred eighty-one million, two hundred seven thousand, nine hundred twenty-nine".