99405803 has 4 divisors (see below), whose sum is σ = 113606640. Its totient is φ = 85204968.

The previous prime is 99405769. The next prime is 99405833. The reversal of 99405803 is 30850499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30850499 = 503 ⋅61333.

It is a cyclic number.

It is not a de Polignac number, because 99405803 - 2¹² = 99401707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99405833) 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, 7100408 + ... + 7100421.

It is an arithmetic number, because the mean of its divisors is an integer number (28401660).

Almost surely, 2^99405803 is an apocalyptic number.

99405803 is a deficient number, since it is larger than the sum of its proper divisors (14200837).

99405803 is a wasteful number, since it uses less digits than its factorization.

99405803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200836.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 99405803 is about 9970.2458846309. The cubic root of 99405803 is about 463.2377170440.

The spelling of 99405803 in words is "ninety-nine million, four hundred five thousand, eight hundred three".