99993693 has 8 divisors (see below), whose sum is σ = 137625856. Its totient is φ = 64512000.

The previous prime is 99993679. The next prime is 99993743. The reversal of 99993693 is 39639999.

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

It is not a de Polignac number, because 99993693 - 2¹⁴ = 99977309 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 (99993193) 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, 537508 + ... + 537693.

It is an arithmetic number, because the mean of its divisors is an integer number (17203232).

Almost surely, 2^99993693 is an apocalyptic number.

99993693 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

99993693 is a deficient number, since it is larger than the sum of its proper divisors (37632163).

99993693 is a wasteful number, since it uses less digits than its factorization.

99993693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075235.

The product of its digits is 3188646, while the sum is 57.

The square root of 99993693 is about 9999.6846450276. The cubic root of 99993693 is about 464.1491249892.

The spelling of 99993693 in words is "ninety-nine million, nine hundred ninety-three thousand, six hundred ninety-three".