999732997 has 2 divisors, whose sum is σ = 999732998. Its totient is φ = 999732996.

The previous prime is 999732989. The next prime is 999733003. The reversal of 999732997 is 799237999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661209796 + 338523201 = 25714^2 + 18399^2 .

It is a cyclic number.

It is not a de Polignac number, because 999732997 - 2³ = 999732989 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 (999732917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499866498 + 499866499.

It is an arithmetic number, because the mean of its divisors is an integer number (499866499).

Almost surely, 2^999732997 is an apocalyptic number.

It is an amenable number.

999732997 is a deficient number, since it is larger than the sum of its proper divisors (1).

999732997 is an equidigital number, since it uses as much as digits as its factorization.

999732997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17360406, while the sum is 64.

The square root of 999732997 is about 31618.5546317348. The cubic root of 999732997 is about 999.9109910776.

The spelling of 999732997 in words is "nine hundred ninety-nine million, seven hundred thirty-two thousand, nine hundred ninety-seven".