99997357 has 2 divisors, whose sum is σ = 99997358.
Its totient is φ = 99997356.
The previous prime is 99997267. The next prime is 99997367. The reversal of 99997357 is 75379999.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 99620361 + 376996 = 9981^2 + 614^2
It is an emirp because it is prime and its reverse (75379999) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 99997357 - 215 = 99964589 is a prime.
It is a congruent number.
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, 49998678 + 49998679.
It is an arithmetic number, because the mean of its divisors is an integer number (49998679).
Almost surely, 299997357 is an apocalyptic number.
It is an amenable number.
99997357 is a deficient number, since it is larger than the sum of its proper divisors (1).
99997357 is an equidigital number, since it uses as much as digits as its factorization.
99997357 is an evil number, because the sum of its binary digits is even.
The product of its digits is 4822335, while the sum is 58.
The square root of 99997357 is about 9999.8678491268.
The cubic root of 99997357 is about 464.1547940855.
The spelling of 99997357 in words is "ninety-nine million, nine hundred ninety-seven thousand, three hundred fifty-seven".