999608447 has 2 divisors, whose sum is σ = 999608448. Its totient is φ = 999608446.

The previous prime is 999608417. The next prime is 999608459. The reversal of 999608447 is 744806999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999608447 - 2⁶ = 999608383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999608392 and 999608401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999608417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499804223 + 499804224.

It is an arithmetic number, because the mean of its divisors is an integer number (499804224).

Almost surely, 2^999608447 is an apocalyptic number.

999608447 is a deficient number, since it is larger than the sum of its proper divisors (1).

999608447 is an equidigital number, since it uses as much as digits as its factorization.

999608447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 999608447 is about 31616.5849990159. The cubic root of 999608447 is about 999.8694652948.

The spelling of 999608447 in words is "nine hundred ninety-nine million, six hundred eight thousand, four hundred forty-seven".