99967297 has 2 divisors, whose sum is σ = 99967298. Its totient is φ = 99967296.

The previous prime is 99967277. The next prime is 99967313. The reversal of 99967297 is 79276999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83247376 + 16719921 = 9124^2 + 4089^2 .

It is an emirp because it is prime and its reverse (79276999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99967297 is a prime.

It is not a weakly prime, because it can be changed into another prime (99967207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49983648 + 49983649.

It is an arithmetic number, because the mean of its divisors is an integer number (49983649).

Almost surely, 2^99967297 is an apocalyptic number.

It is an amenable number.

99967297 is a deficient number, since it is larger than the sum of its proper divisors (1).

99967297 is an equidigital number, since it uses as much as digits as its factorization.

99967297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3857868, while the sum is 58.

The square root of 99967297 is about 9998.3647162924. The cubic root of 99967297 is about 464.1082798847.

The spelling of 99967297 in words is "ninety-nine million, nine hundred sixty-seven thousand, two hundred ninety-seven".