996453109 has 2 divisors, whose sum is σ = 996453110. Its totient is φ = 996453108.

The previous prime is 996453071. The next prime is 996453163. The reversal of 996453109 is 901354699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946792900 + 49660209 = 30770^2 + 7047^2 .

It is a cyclic number.

It is not a de Polignac number, because 996453109 - 2²³ = 988064501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996453169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498226554 + 498226555.

It is an arithmetic number, because the mean of its divisors is an integer number (498226555).

Almost surely, 2^996453109 is an apocalyptic number.

It is an amenable number.

996453109 is a deficient number, since it is larger than the sum of its proper divisors (1).

996453109 is an equidigital number, since it uses as much as digits as its factorization.

996453109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 996453109 is about 31566.6455138965. The cubic root of 996453109 is about 998.8163024129.

The spelling of 996453109 in words is "nine hundred ninety-six million, four hundred fifty-three thousand, one hundred nine".