7971630443 has 8 divisors (see below), whose sum is σ = 9589931520. Its totient is φ = 6473203560.

The previous prime is 7971630431. The next prime is 7971630493. The reversal of 7971630443 is 3440361797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7971630443 - 2⁸ = 7971630187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7971630394 and 7971630403.

It is not an unprimeable number, because it can be changed into a prime (7971630493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29968403 + ... + 29968668.

It is an arithmetic number, because the mean of its divisors is an integer number (1198741440).

Almost surely, 2^7971630443 is an apocalyptic number.

7971630443 is a deficient number, since it is larger than the sum of its proper divisors (1618301077).

7971630443 is a wasteful number, since it uses less digits than its factorization.

7971630443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59937097.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 7971630443 is about 89283.9876069612. The cubic root of 7971630443 is about 1997.6330701766.

The spelling of 7971630443 in words is "seven billion, nine hundred seventy-one million, six hundred thirty thousand, four hundred forty-three".