996632657 has 2 divisors, whose sum is σ = 996632658. Its totient is φ = 996632656.

The previous prime is 996632597. The next prime is 996632683. The reversal of 996632657 is 756236699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626801296 + 369831361 = 25036^2 + 19231^2 .

It is an emirp because it is prime and its reverse (756236699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996632657 - 2⁸ = 996632401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 996632599 and 996632608.

It is not a weakly prime, because it can be changed into another prime (996632257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498316328 + 498316329.

It is an arithmetic number, because the mean of its divisors is an integer number (498316329).

Almost surely, 2^996632657 is an apocalyptic number.

It is an amenable number.

996632657 is a deficient number, since it is larger than the sum of its proper divisors (1).

996632657 is an equidigital number, since it uses as much as digits as its factorization.

996632657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 53.

The square root of 996632657 is about 31569.4893370165. The cubic root of 996632657 is about 998.8762900823.

The spelling of 996632657 in words is "nine hundred ninety-six million, six hundred thirty-two thousand, six hundred fifty-seven".