99990548 has 12 divisors (see below), whose sum is σ = 199981152. Its totient is φ = 42853080.

The previous prime is 99990547. The next prime is 99990551. The reversal of 99990548 is 84509999.

99990548 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 99990548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99990547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785518 + ... + 1785573.

It is an arithmetic number, because the mean of its divisors is an integer number (16665096).

Almost surely, 2^99990548 is an apocalyptic number.

It is an amenable number.

99990548 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99990548 is a wasteful number, since it uses less digits than its factorization.

99990548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571102 (or 3571100 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 99990548 is about 9999.5273888319. The cubic root of 99990548 is about 464.1442588013.

The spelling of 99990548 in words is "ninety-nine million, nine hundred ninety thousand, five hundred forty-eight".