99717493 has 16 divisors (see below), whose sum is σ = 104457600. Its totient is φ = 95129280.

The previous prime is 99717487. The next prime is 99717511. The reversal of 99717493 is 39471799.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99717493 - 2²⁵ = 66163061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99717413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370563 + ... + 370831.

It is an arithmetic number, because the mean of its divisors is an integer number (6528600).

Almost surely, 2^99717493 is an apocalyptic number.

It is an amenable number.

99717493 is a deficient number, since it is larger than the sum of its proper divisors (4740107).

99717493 is a wasteful number, since it uses less digits than its factorization.

99717493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 428652, while the sum is 49.

The square root of 99717493 is about 9985.8646596076. The cubic root of 99717493 is about 463.7213773283.

The spelling of 99717493 in words is "ninety-nine million, seven hundred seventeen thousand, four hundred ninety-three".