99378441 has 16 divisors (see below), whose sum is σ = 147505600. Its totient is φ = 66127104.

The previous prime is 99378427. The next prime is 99378451. The reversal of 99378441 is 14487399.

It is not a de Polignac number, because 99378441 - 2¹¹ = 99376393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99378421) 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 15 ways as a sum of consecutive naturals, for example, 12390 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (9219100).

Almost surely, 2^99378441 is an apocalyptic number.

It is an amenable number.

99378441 is a deficient number, since it is larger than the sum of its proper divisors (48127159).

99378441 is a wasteful number, since it uses less digits than its factorization.

99378441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965 (or 6959 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 99378441 is about 9968.8736073841. The cubic root of 99378441 is about 463.1952102246.

The spelling of 99378441 in words is "ninety-nine million, three hundred seventy-eight thousand, four hundred forty-one".