8076686981 has 4 divisors (see below), whose sum is σ = 8810931264. Its totient is φ = 7342442700.

The previous prime is 8076686939. The next prime is 8076686987. The reversal of 8076686981 is 1896866708.

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 8076686981 - 2¹⁴ = 8076670597 is a prime.

It is a super-2 number, since 2×8076686981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8076686981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8076686987) 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, 367122125 + ... + 367122146.

It is an arithmetic number, because the mean of its divisors is an integer number (2202732816).

Almost surely, 2^8076686981 is an apocalyptic number.

It is an amenable number.

8076686981 is a deficient number, since it is larger than the sum of its proper divisors (734244283).

8076686981 is a wasteful number, since it uses less digits than its factorization.

8076686981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734244282.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The square root of 8076686981 is about 89870.3899012350. The cubic root of 8076686981 is about 2006.3702700375.

The spelling of 8076686981 in words is "eight billion, seventy-six million, six hundred eighty-six thousand, nine hundred eighty-one".