99584957 has 4 divisors (see below), whose sum is σ = 99663036. Its totient is φ = 99506880.

The previous prime is 99584923. The next prime is 99584959. The reversal of 99584957 is 75948599.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97337956 + 2247001 = 9866^2 + 1499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99584957 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 (99584959) 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 3 ways as a sum of consecutive naturals, for example, 37094 + ... + 39687.

It is an arithmetic number, because the mean of its divisors is an integer number (24915759).

Almost surely, 2^99584957 is an apocalyptic number.

It is an amenable number.

99584957 is a deficient number, since it is larger than the sum of its proper divisors (78079).

99584957 is a wasteful number, since it uses less digits than its factorization.

99584957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78078.

The product of its digits is 4082400, while the sum is 56.

The square root of 99584957 is about 9979.2262726125. The cubic root of 99584957 is about 463.5158399187.

The spelling of 99584957 in words is "ninety-nine million, five hundred eighty-four thousand, nine hundred fifty-seven".