996570893 has 2 divisors, whose sum is σ = 996570894. Its totient is φ = 996570892.

The previous prime is 996570871. The next prime is 996570917. The reversal of 996570893 is 398075699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708997129 + 287573764 = 26627^2 + 16958^2 .

It is a cyclic number.

It is not a de Polignac number, because 996570893 - 2⁸ = 996570637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996570823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498285446 + 498285447.

It is an arithmetic number, because the mean of its divisors is an integer number (498285447).

Almost surely, 2^996570893 is an apocalyptic number.

It is an amenable number.

996570893 is a deficient number, since it is larger than the sum of its proper divisors (1).

996570893 is an equidigital number, since it uses as much as digits as its factorization.

996570893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The square root of 996570893 is about 31568.5110988783. The cubic root of 996570893 is about 998.8556553081.

The spelling of 996570893 in words is "nine hundred ninety-six million, five hundred seventy thousand, eight hundred ninety-three".