996951671 has 2 divisors, whose sum is σ = 996951672. Its totient is φ = 996951670.

The previous prime is 996951667. The next prime is 996951673. The reversal of 996951671 is 176159699.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (176159699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996951671 - 2² = 996951667 is a prime.

Together with 996951673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996951673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498475835 + 498475836.

It is an arithmetic number, because the mean of its divisors is an integer number (498475836).

Almost surely, 2^996951671 is an apocalyptic number.

996951671 is a deficient number, since it is larger than the sum of its proper divisors (1).

996951671 is an equidigital number, since it uses as much as digits as its factorization.

996951671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918540, while the sum is 53.

The square root of 996951671 is about 31574.5415010258. The cubic root of 996951671 is about 998.9828561024.

The spelling of 996951671 in words is "nine hundred ninety-six million, nine hundred fifty-one thousand, six hundred seventy-one".