8992391963 has 2 divisors, whose sum is σ = 8992391964. Its totient is φ = 8992391962.

The previous prime is 8992391917. The next prime is 8992391999. The reversal of 8992391963 is 3691932998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8992391963 - 2¹² = 8992387867 is a prime.

It is a super-2 number, since 2×8992391963² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8992391263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4496195981 + 4496195982.

It is an arithmetic number, because the mean of its divisors is an integer number (4496195982).

Almost surely, 2^8992391963 is an apocalyptic number.

8992391963 is a deficient number, since it is larger than the sum of its proper divisors (1).

8992391963 is an equidigital number, since it uses as much as digits as its factorization.

8992391963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5668704, while the sum is 59.

The square root of 8992391963 is about 94828.2234516708. The cubic root of 8992391963 is about 2079.4975335690.

The spelling of 8992391963 in words is "eight billion, nine hundred ninety-two million, three hundred ninety-one thousand, nine hundred sixty-three".