99993619 has 8 divisors (see below), whose sum is σ = 111621312. Its totient is φ = 88788840.

The previous prime is 99993611. The next prime is 99993671. The reversal of 99993619 is 91639999.

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 99993619 - 2³ = 99993611 is a prime.

It is a super-2 number, since 2×99993619² = 19997447681434322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99993619.

It is not an unprimeable number, because it can be changed into a prime (99993611) 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, 105229 + ... + 106174.

It is an arithmetic number, because the mean of its divisors is an integer number (13952664).

Almost surely, 2^99993619 is an apocalyptic number.

99993619 is a deficient number, since it is larger than the sum of its proper divisors (11627693).

99993619 is a wasteful number, since it uses less digits than its factorization.

99993619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211457.

The product of its digits is 1062882, while the sum is 55.

The square root of 99993619 is about 9999.6809449102. The cubic root of 99993619 is about 464.1490104918.

The spelling of 99993619 in words is "ninety-nine million, nine hundred ninety-three thousand, six hundred nineteen".