99927428 has 12 divisors (see below), whose sum is σ = 185159772. Its totient is φ = 47024640.

The previous prime is 99927427. The next prime is 99927431. The reversal of 99927428 is 82472999.

It can be written as a sum of positive squares in 2 ways, for example, as 38962564 + 60964864 = 6242^2 + 7808^2 .

It is not an unprimeable number, because it can be changed into a prime (99927427) 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, 734693 + ... + 734828.

It is an arithmetic number, because the mean of its divisors is an integer number (15429981).

Almost surely, 2^99927428 is an apocalyptic number.

It is an amenable number.

99927428 is a deficient number, since it is larger than the sum of its proper divisors (85232344).

99927428 is a wasteful number, since it uses less digits than its factorization.

99927428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469542 (or 1469540 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 99927428 is about 9996.3707414241. The cubic root of 99927428 is about 464.0465730600.

The spelling of 99927428 in words is "ninety-nine million, nine hundred twenty-seven thousand, four hundred twenty-eight".