99994023 has 12 divisors (see below), whose sum is σ = 144817920. Its totient is φ = 66486336.

The previous prime is 99994021. The next prime is 99994043. The reversal of 99994023 is 32049999.

It is not a de Polignac number, because 99994023 - 2¹ = 99994021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99994023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99994021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11058 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (12068160).

Almost surely, 2^99994023 is an apocalyptic number.

99994023 is a deficient number, since it is larger than the sum of its proper divisors (44823897).

99994023 is a wasteful number, since it uses less digits than its factorization.

99994023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29398 (or 29395 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 99994023 is about 9999.7011455343. The cubic root of 99994023 is about 464.1496355849.

The spelling of 99994023 in words is "ninety-nine million, nine hundred ninety-four thousand, twenty-three".