999357097 has 2 divisors, whose sum is σ = 999357098. Its totient is φ = 999357096.

The previous prime is 999357067. The next prime is 999357113. The reversal of 999357097 is 790753999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 542936601 + 456420496 = 23301^2 + 21364^2 .

It is a cyclic number.

It is not a de Polignac number, because 999357097 - 2¹⁵ = 999324329 is a prime.

It is not a weakly prime, because it can be changed into another prime (999357067) 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, 499678548 + 499678549.

It is an arithmetic number, because the mean of its divisors is an integer number (499678549).

Almost surely, 2^999357097 is an apocalyptic number.

It is an amenable number.

999357097 is a deficient number, since it is larger than the sum of its proper divisors (1).

999357097 is an equidigital number, since it uses as much as digits as its factorization.

999357097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4822335, while the sum is 58.

The square root of 999357097 is about 31612.6097783780. The cubic root of 999357097 is about 999.7856530587.

The spelling of 999357097 in words is "nine hundred ninety-nine million, three hundred fifty-seven thousand, ninety-seven".