996591623 has 2 divisors, whose sum is σ = 996591624. Its totient is φ = 996591622.

The previous prime is 996591601. The next prime is 996591637. The reversal of 996591623 is 326195699.

996591623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 996591623 - 2⁸ = 996591367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996591643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498295811 + 498295812.

It is an arithmetic number, because the mean of its divisors is an integer number (498295812).

Almost surely, 2^996591623 is an apocalyptic number.

996591623 is a deficient number, since it is larger than the sum of its proper divisors (1).

996591623 is an equidigital number, since it uses as much as digits as its factorization.

996591623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 50.

The square root of 996591623 is about 31568.8394306791. The cubic root of 996591623 is about 998.8625811021.

The spelling of 996591623 in words is "nine hundred ninety-six million, five hundred ninety-one thousand, six hundred twenty-three".