99994005 has 12 divisors (see below), whose sum is σ = 173323020. Its totient is φ = 53330112.

The previous prime is 99993997. The next prime is 99994009. The reversal of 99994005 is 50049999.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32524209 + 67469796 = 5703^2 + 8214^2 .

It is not a de Polignac number, because 99994005 - 2³ = 99993997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2222089 = 99994005 / (9 + 9 + 9 + 9 + 4 + 0 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99994009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111000 + ... + 1111089.

It is an arithmetic number, because the mean of its divisors is an integer number (14443585).

Almost surely, 2^99994005 is an apocalyptic number.

It is an amenable number.

99994005 is a deficient number, since it is larger than the sum of its proper divisors (73329015).

99994005 is a wasteful number, since it uses less digits than its factorization.

99994005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222100 (or 2222097 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 99994005 is about 9999.7002455074. The cubic root of 99994005 is about 464.1496077342.

The spelling of 99994005 in words is "ninety-nine million, nine hundred ninety-four thousand, five".