99634247 has 8 divisors (see below), whose sum is σ = 101797440. Its totient is φ = 97493760.

The previous prime is 99634237. The next prime is 99634253. The reversal of 99634247 is 74243699.

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 99634247 - 2¹⁸ = 99372103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99634198 and 99634207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99634207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347 + ... + 14507.

It is an arithmetic number, because the mean of its divisors is an integer number (12724680).

Almost surely, 2^99634247 is an apocalyptic number.

99634247 is a deficient number, since it is larger than the sum of its proper divisors (2163193).

99634247 is a wasteful number, since it uses less digits than its factorization.

99634247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353.

The product of its digits is 326592, while the sum is 44.

The square root of 99634247 is about 9981.6955974424. The cubic root of 99634247 is about 463.5923003538.

The spelling of 99634247 in words is "ninety-nine million, six hundred thirty-four thousand, two hundred forty-seven".