8078961971 has 4 divisors (see below), whose sum is σ = 8079585000. Its totient is φ = 8078338944.

The previous prime is 8078961949. The next prime is 8078962009. The reversal of 8078961971 is 1791698708.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8078961971 - 2²² = 8074767667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8078961941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291641 + ... + 318138.

It is an arithmetic number, because the mean of its divisors is an integer number (2019896250).

Almost surely, 2^8078961971 is an apocalyptic number.

8078961971 is a deficient number, since it is larger than the sum of its proper divisors (623029).

8078961971 is a wasteful number, since it uses less digits than its factorization.

8078961971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623028.

The product of its (nonzero) digits is 1524096, while the sum is 56.

The square root of 8078961971 is about 89883.0460709916. The cubic root of 8078961971 is about 2006.5586329069.

The spelling of 8078961971 in words is "eight billion, seventy-eight million, nine hundred sixty-one thousand, nine hundred seventy-one".