99634503 has 4 divisors (see below), whose sum is σ = 132846008. Its totient is φ = 66423000.

The previous prime is 99634487. The next prime is 99634511. The reversal of 99634503 is 30543699.

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

It is not a de Polignac number, because 99634503 - 2⁴ = 99634487 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 (99634543) 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, 16605748 + ... + 16605753.

It is an arithmetic number, because the mean of its divisors is an integer number (33211502).

Almost surely, 2^99634503 is an apocalyptic number.

99634503 is a deficient number, since it is larger than the sum of its proper divisors (33211505).

99634503 is a wasteful number, since it uses less digits than its factorization.

99634503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33211504.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 99634503 is about 9981.7084209067. The cubic root of 99634503 is about 463.5926974045.

The spelling of 99634503 in words is "ninety-nine million, six hundred thirty-four thousand, five hundred three".