9998872403 has 4 divisors (see below), whose sum is σ = 10768016448. Its totient is φ = 9229728360.

The previous prime is 9998872399. The next prime is 9998872441. The reversal of 9998872403 is 3042788999.

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 9998872403 - 2² = 9998872399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9998872453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384572003 + ... + 384572028.

It is an arithmetic number, because the mean of its divisors is an integer number (2692004112).

Almost surely, 2^9998872403 is an apocalyptic number.

9998872403 is a deficient number, since it is larger than the sum of its proper divisors (769144045).

9998872403 is a wasteful number, since it uses less digits than its factorization.

9998872403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769144044.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The square root of 9998872403 is about 99994.3618560567. The cubic root of 9998872403 is about 2154.3537091849.

The spelling of 9998872403 in words is "nine billion, nine hundred ninety-eight million, eight hundred seventy-two thousand, four hundred three".