99658628 has 12 divisors (see below), whose sum is σ = 177262092. Its totient is φ = 49012320.

The previous prime is 99658627. The next prime is 99658639. The reversal of 99658628 is 82685699.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 83028544 = 4078^2 + 9112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99658628.

It is not an unprimeable number, because it can be changed into a prime (99658621) 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 3 ways as a sum of consecutive naturals, for example, 203975 + ... + 204462.

It is an arithmetic number, because the mean of its divisors is an integer number (14771841).

Almost surely, 2^99658628 is an apocalyptic number.

It is an amenable number.

99658628 is a deficient number, since it is larger than the sum of its proper divisors (77603464).

99658628 is a wasteful number, since it uses less digits than its factorization.

99658628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408502 (or 408500 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 99658628 is about 9982.9168082279. The cubic root of 99658628 is about 463.6301117235.

The spelling of 99658628 in words is "ninety-nine million, six hundred fifty-eight thousand, six hundred twenty-eight".