99943375 has 16 divisors (see below), whose sum is σ = 142549056. Its totient is φ = 68532000.

The previous prime is 99943373. The next prime is 99943379. The reversal of 99943375 is 57334999.

It is not a de Polignac number, because 99943375 - 2¹ = 99943373 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 (99943373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56236 + ... + 57985.

It is an arithmetic number, because the mean of its divisors is an integer number (8909316).

Almost surely, 2^99943375 is an apocalyptic number.

99943375 is a deficient number, since it is larger than the sum of its proper divisors (42605681).

99943375 is a wasteful number, since it uses less digits than its factorization.

99943375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114243 (or 114233 counting only the distinct ones).

The product of its digits is 918540, while the sum is 49.

The square root of 99943375 is about 9997.1683490877. The cubic root of 99943375 is about 464.0712568305.

The spelling of 99943375 in words is "ninety-nine million, nine hundred forty-three thousand, three hundred seventy-five".