99403013 has 4 divisors (see below), whose sum is σ = 99436428. Its totient is φ = 99369600.

The previous prime is 99403001. The next prime is 99403021. The reversal of 99403013 is 31030499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31030499 = 139 ⋅223241.

It can be written as a sum of positive squares in 2 ways, for example, as 59876644 + 39526369 = 7738^2 + 6287^2 .

It is a cyclic number.

It is not a de Polignac number, because 99403013 - 2¹⁰ = 99401989 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 (99400013) 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, 11756 + ... + 18357.

It is an arithmetic number, because the mean of its divisors is an integer number (24859107).

Almost surely, 2^99403013 is an apocalyptic number.

It is an amenable number.

99403013 is a deficient number, since it is larger than the sum of its proper divisors (33415).

99403013 is a wasteful number, since it uses less digits than its factorization.

99403013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33414.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 99403013 is about 9970.1059673406. The cubic root of 99403013 is about 463.2333831410.

The spelling of 99403013 in words is "ninety-nine million, four hundred three thousand, thirteen".