99916619 has 8 divisors (see below), whose sum is σ = 109073712. Its totient is φ = 90771840.

The previous prime is 99916603. The next prime is 99916637. The reversal of 99916619 is 91661999.

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 99916619 - 2⁴ = 99916603 is a prime.

It is a super-2 number, since 2×99916619² = 19966661504782322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99916639) 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, 25367 + ... + 29039.

It is an arithmetic number, because the mean of its divisors is an integer number (13634214).

Almost surely, 2^99916619 is an apocalyptic number.

99916619 is a deficient number, since it is larger than the sum of its proper divisors (9157093).

99916619 is a wasteful number, since it uses less digits than its factorization.

99916619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157.

The product of its digits is 236196, while the sum is 50.

The square root of 99916619 is about 9995.8300805886. The cubic root of 99916619 is about 464.0298407161.

The spelling of 99916619 in words is "ninety-nine million, nine hundred sixteen thousand, six hundred nineteen".