996427973 has 2 divisors, whose sum is σ = 996427974. Its totient is φ = 996427972.

The previous prime is 996427921. The next prime is 996427979. The reversal of 996427973 is 379724699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799362529 + 197065444 = 28273^2 + 14038^2 .

It is a cyclic number.

It is not a de Polignac number, because 996427973 - 2⁸ = 996427717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996427979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498213986 + 498213987.

It is an arithmetic number, because the mean of its divisors is an integer number (498213987).

Almost surely, 2^996427973 is an apocalyptic number.

It is an amenable number.

996427973 is a deficient number, since it is larger than the sum of its proper divisors (1).

996427973 is an equidigital number, since it uses as much as digits as its factorization.

996427973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5143824, while the sum is 56.

The square root of 996427973 is about 31566.2473696193. The cubic root of 996427973 is about 998.8079038047.

The spelling of 996427973 in words is "nine hundred ninety-six million, four hundred twenty-seven thousand, nine hundred seventy-three".