99528775 has 12 divisors (see below), whose sum is σ = 123556824. Its totient is φ = 79532000.

The previous prime is 99528773. The next prime is 99528791. The reversal of 99528775 is 57782599.

It is not a de Polignac number, because 99528775 - 2¹ = 99528773 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 (99528773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27840 + ... + 31210.

It is an arithmetic number, because the mean of its divisors is an integer number (10296402).

Almost surely, 2^99528775 is an apocalyptic number.

99528775 is a deficient number, since it is larger than the sum of its proper divisors (24028049).

99528775 is a wasteful number, since it uses less digits than its factorization.

99528775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562 (or 4557 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 52.

The square root of 99528775 is about 9976.4109277836. The cubic root of 99528775 is about 463.4286575892.

The spelling of 99528775 in words is "ninety-nine million, five hundred twenty-eight thousand, seven hundred seventy-five".