99997369 has 2 divisors, whose sum is σ = 99997370. Its totient is φ = 99997368.

The previous prime is 99997367. The next prime is 99997393. The reversal of 99997369 is 96379999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99900025 + 97344 = 9995^2 + 312^2 .

It is a cyclic number.

It is not a de Polignac number, because 99997369 - 2¹ = 99997367 is a prime.

It is a super-2 number, since 2×99997369² = 19998947613844322, which contains 22 as substring.

Together with 99997367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99997367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49998684 + 49998685.

It is an arithmetic number, because the mean of its divisors is an integer number (49998685).

Almost surely, 2^99997369 is an apocalyptic number.

It is an amenable number.

99997369 is a deficient number, since it is larger than the sum of its proper divisors (1).

99997369 is an equidigital number, since it uses as much as digits as its factorization.

99997369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7440174, while the sum is 61.

The square root of 99997369 is about 9999.8684491347. The cubic root of 99997369 is about 464.1548126522.

The spelling of 99997369 in words is "ninety-nine million, nine hundred ninety-seven thousand, three hundred sixty-nine".