99997459 has 2 divisors, whose sum is σ = 99997460. Its totient is φ = 99997458.

The previous prime is 99997441. The next prime is 99997493. The reversal of 99997459 is 95479999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99997459 - 2⁵ = 99997427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99997397 and 99997406.

It is not a weakly prime, because it can be changed into another prime (99997159) 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, 49998729 + 49998730.

It is an arithmetic number, because the mean of its divisors is an integer number (49998730).

Almost surely, 2^99997459 is an apocalyptic number.

99997459 is a deficient number, since it is larger than the sum of its proper divisors (1).

99997459 is an equidigital number, since it uses as much as digits as its factorization.

99997459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8266860, while the sum is 61.

The square root of 99997459 is about 9999.8729491929. The cubic root of 99997459 is about 464.1549519022.

The spelling of 99997459 in words is "ninety-nine million, nine hundred ninety-seven thousand, four hundred fifty-nine".