99994587 has 32 divisors (see below), whose sum is σ = 174981120. Its totient is φ = 49209120.

The previous prime is 99994579. The next prime is 99994607. The reversal of 99994587 is 78549999.

It is a happy number.

It is not a de Polignac number, because 99994587 - 2³ = 99994579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99994587.

It is not an unprimeable number, because it can be changed into a prime (99994567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7003 + ... + 15780.

It is an arithmetic number, because the mean of its divisors is an integer number (5468160).

Almost surely, 2^99994587 is an apocalyptic number.

99994587 is a deficient number, since it is larger than the sum of its proper divisors (74986533).

99994587 is a wasteful number, since it uses less digits than its factorization.

99994587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22823.

The product of its digits is 7348320, while the sum is 60.

The square root of 99994587 is about 9999.7293463373. The cubic root of 99994587 is about 464.1505082367.

The spelling of 99994587 in words is "ninety-nine million, nine hundred ninety-four thousand, five hundred eighty-seven".