99672429 has 8 divisors (see below), whose sum is σ = 133260160. Its totient is φ = 66266496.

The previous prime is 99672407. The next prime is 99672431. The reversal of 99672429 is 92427699.

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

It is not a de Polignac number, because 99672429 - 2⁹ = 99671917 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 (99672329) 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, 44164 + ... + 46365.

It is an arithmetic number, because the mean of its divisors is an integer number (16657520).

Almost surely, 2^99672429 is an apocalyptic number.

It is an amenable number.

99672429 is a deficient number, since it is larger than the sum of its proper divisors (33587731).

99672429 is a wasteful number, since it uses less digits than its factorization.

99672429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90899.

The product of its digits is 489888, while the sum is 48.

The square root of 99672429 is about 9983.6080151416. The cubic root of 99672429 is about 463.6515123253.

The spelling of 99672429 in words is "ninety-nine million, six hundred seventy-two thousand, four hundred twenty-nine".