99718419 has 12 divisors (see below), whose sum is σ = 136129416. Its totient is φ = 64929312.

The previous prime is 99718417. The next prime is 99718427. The reversal of 99718419 is 91481799.

It is not a de Polignac number, because 99718419 - 2¹ = 99718417 is a prime.

It is a super-2 number, since 2×99718419² = 19887526175719122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (99718417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3442 + ... + 14535.

It is an arithmetic number, because the mean of its divisors is an integer number (11344118).

Almost surely, 2^99718419 is an apocalyptic number.

99718419 is a deficient number, since it is larger than the sum of its proper divisors (36410997).

99718419 is a wasteful number, since it uses less digits than its factorization.

99718419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066 (or 18023 counting only the distinct ones).

The product of its digits is 163296, while the sum is 48.

The square root of 99718419 is about 9985.9110250392. The cubic root of 99718419 is about 463.7228127323.

The spelling of 99718419 in words is "ninety-nine million, seven hundred eighteen thousand, four hundred nineteen".