99238943 has 4 divisors (see below), whose sum is σ = 100020480. Its totient is φ = 98457408.

The previous prime is 99238939. The next prime is 99238961. The reversal of 99238943 is 34983299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99238943 - 2² = 99238939 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 (99238903) 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, 390578 + ... + 390831.

It is an arithmetic number, because the mean of its divisors is an integer number (25005120).

Almost surely, 2^99238943 is an apocalyptic number.

99238943 is a deficient number, since it is larger than the sum of its proper divisors (781537).

99238943 is a wasteful number, since it uses less digits than its factorization.

99238943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781536.

The product of its digits is 419904, while the sum is 47.

The square root of 99238943 is about 9961.8744722065. The cubic root of 99238943 is about 462.9783789489.

The spelling of 99238943 in words is "ninety-nine million, two hundred thirty-eight thousand, nine hundred forty-three".