99684454 has 8 divisors (see below), whose sum is σ = 149999328. Its totient is φ = 49684680.

The previous prime is 99684439. The next prime is 99684457. The reversal of 99684454 is 45448699.

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

It is a junction number, because it is equal to n+sod(n) for n = 99684398 and 99684407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99684457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77982 + ... + 79249.

It is an arithmetic number, because the mean of its divisors is an integer number (18749916).

Almost surely, 2^99684454 is an apocalyptic number.

99684454 is a deficient number, since it is larger than the sum of its proper divisors (50314874).

99684454 is a wasteful number, since it uses less digits than its factorization.

99684454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157550.

The product of its digits is 1244160, while the sum is 49.

The square root of 99684454 is about 9984.2102341647. The cubic root of 99684454 is about 463.6701573518.

The spelling of 99684454 in words is "ninety-nine million, six hundred eighty-four thousand, four hundred fifty-four".