99545279 has 4 divisors (see below), whose sum is σ = 99698376. Its totient is φ = 99392184.

The previous prime is 99545273. The next prime is 99545287. The reversal of 99545279 is 97254599.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99545279 - 2⁴ = 99545263 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 (99545273) 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, 75569 + ... + 76874.

It is an arithmetic number, because the mean of its divisors is an integer number (24924594).

Almost surely, 2^99545279 is an apocalyptic number.

99545279 is a deficient number, since it is larger than the sum of its proper divisors (153097).

99545279 is a wasteful number, since it uses less digits than its factorization.

99545279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153096.

The product of its digits is 1020600, while the sum is 50.

The square root of 99545279 is about 9977.2380446695. The cubic root of 99545279 is about 463.4542716351.

The spelling of 99545279 in words is "ninety-nine million, five hundred forty-five thousand, two hundred seventy-nine".