996453391 has 2 divisors, whose sum is σ = 996453392. Its totient is φ = 996453390.

The previous prime is 996453389. The next prime is 996453407. The reversal of 996453391 is 193354699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996453391 - 2¹ = 996453389 is a prime.

Together with 996453389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996453191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498226695 + 498226696.

It is an arithmetic number, because the mean of its divisors is an integer number (498226696).

Almost surely, 2^996453391 is an apocalyptic number.

996453391 is a deficient number, since it is larger than the sum of its proper divisors (1).

996453391 is an equidigital number, since it uses as much as digits as its factorization.

996453391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 49.

The square root of 996453391 is about 31566.6499806362. The cubic root of 996453391 is about 998.8163966358.

The spelling of 996453391 in words is "nine hundred ninety-six million, four hundred fifty-three thousand, three hundred ninety-one".