99638085 has 8 divisors (see below), whose sum is σ = 159420960. Its totient is φ = 53140304.

The previous prime is 99638083. The next prime is 99638087. The reversal of 99638085 is 58083699.

It is an interprime number because it is at equal distance from previous prime (99638083) and next prime (99638087).

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 99638085 - 2¹ = 99638083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99638083) 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, 3321255 + ... + 3321284.

It is an arithmetic number, because the mean of its divisors is an integer number (19927620).

Almost surely, 2^99638085 is an apocalyptic number.

It is an amenable number.

99638085 is a deficient number, since it is larger than the sum of its proper divisors (59782875).

99638085 is a wasteful number, since it uses less digits than its factorization.

99638085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642547.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 99638085 is about 9981.8878474966. The cubic root of 99638085 is about 463.5982529402.

The spelling of 99638085 in words is "ninety-nine million, six hundred thirty-eight thousand, eighty-five".