996397187 has 2 divisors, whose sum is σ = 996397188. Its totient is φ = 996397186.

The previous prime is 996397151. The next prime is 996397201. The reversal of 996397187 is 781793699.

996397187 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 996397187 - 2⁶ = 996397123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (996307187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498198593 + 498198594.

It is an arithmetic number, because the mean of its divisors is an integer number (498198594).

Almost surely, 2^996397187 is an apocalyptic number.

996397187 is a deficient number, since it is larger than the sum of its proper divisors (1).

996397187 is an equidigital number, since it uses as much as digits as its factorization.

996397187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5143824, while the sum is 59.

The square root of 996397187 is about 31565.7597247397. The cubic root of 996397187 is about 998.7976171883.

The spelling of 996397187 in words is "nine hundred ninety-six million, three hundred ninety-seven thousand, one hundred eighty-seven".