99952309 has 8 divisors (see below), whose sum is σ = 101677248. Its totient is φ = 98236320.

The previous prime is 99952291. The next prime is 99952393. The reversal of 99952309 is 90325999.

It is a happy number.

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 99952309 - 2¹⁷ = 99821237 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 (99952399) 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, 22609 + ... + 26665.

It is an arithmetic number, because the mean of its divisors is an integer number (12709656).

Almost surely, 2^99952309 is an apocalyptic number.

It is an amenable number.

99952309 is a deficient number, since it is larger than the sum of its proper divisors (1724939).

99952309 is a wasteful number, since it uses less digits than its factorization.

99952309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475.

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 99952309 is about 9997.6151656283. The cubic root of 99952309 is about 464.0850842905.

The spelling of 99952309 in words is "ninety-nine million, nine hundred fifty-two thousand, three hundred nine".