99903167 has 12 divisors (see below), whose sum is σ = 123634800. Its totient is φ = 79043328.

The previous prime is 99903161. The next prime is 99903179. The reversal of 99903167 is 76130999.

It is a happy number.

It is not a de Polignac number, because 99903167 - 2⁴ = 99903151 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99903161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41042 + ... + 43407.

It is an arithmetic number, because the mean of its divisors is an integer number (10302900).

Almost surely, 2^99903167 is an apocalyptic number.

99903167 is a deficient number, since it is larger than the sum of its proper divisors (23731633).

99903167 is a wasteful number, since it uses less digits than its factorization.

99903167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84482 (or 84469 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 99903167 is about 9995.1571773534. The cubic root of 99903167 is about 464.0090153198.

The spelling of 99903167 in words is "ninety-nine million, nine hundred three thousand, one hundred sixty-seven".