99407593 has 2 divisors, whose sum is σ = 99407594. Its totient is φ = 99407592.

The previous prime is 99407591. The next prime is 99407663. The reversal of 99407593 is 39570499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98962704 + 444889 = 9948^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 99407593 - 2¹ = 99407591 is a prime.

Together with 99407591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99407591) 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, 49703796 + 49703797.

It is an arithmetic number, because the mean of its divisors is an integer number (49703797).

Almost surely, 2^99407593 is an apocalyptic number.

It is an amenable number.

99407593 is a deficient number, since it is larger than the sum of its proper divisors (1).

99407593 is an equidigital number, since it uses as much as digits as its factorization.

99407593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 99407593 is about 9970.3356513209. The cubic root of 99407593 is about 463.2404975340.

It can be divided in two parts, 99407 and 593, that added together give a 5-th power (100000 = 10⁵).

The spelling of 99407593 in words is "ninety-nine million, four hundred seven thousand, five hundred ninety-three".