99696389 has 8 divisors (see below), whose sum is σ = 110267640. Its totient is φ = 89539776.

The previous prime is 99696383. The next prime is 99696419. The reversal of 99696389 is 98369699.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 693889 + 99002500 = 833^2 + 9950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99696389 - 2¹² = 99692293 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 (99696383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103154 + ... + 104115.

It is an arithmetic number, because the mean of its divisors is an integer number (13783455).

Almost surely, 2^99696389 is an apocalyptic number.

It is an amenable number.

99696389 is a deficient number, since it is larger than the sum of its proper divisors (10571251).

99696389 is a wasteful number, since it uses less digits than its factorization.

99696389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207319.

The product of its digits is 5668704, while the sum is 59.

The square root of 99696389 is about 9984.8079100201. The cubic root of 99696389 is about 463.6886613487.

The spelling of 99696389 in words is "ninety-nine million, six hundred ninety-six thousand, three hundred eighty-nine".