99631973 has 8 divisors (see below), whose sum is σ = 113936448. Its totient is φ = 85345344.

The previous prime is 99631967. The next prime is 99631981. The reversal of 99631973 is 37913699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99631973 - 2¹⁶ = 99566437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99631913) 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 7 ways as a sum of consecutive naturals, for example, 11165 + ... + 17997.

It is an arithmetic number, because the mean of its divisors is an integer number (14242056).

Almost surely, 2^99631973 is an apocalyptic number.

It is an amenable number.

99631973 is a deficient number, since it is larger than the sum of its proper divisors (14304475).

99631973 is a wasteful number, since it uses less digits than its factorization.

99631973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923.

The product of its digits is 275562, while the sum is 47.

The square root of 99631973 is about 9981.5816882897. The cubic root of 99631973 is about 463.5887733975.

The spelling of 99631973 in words is "ninety-nine million, six hundred thirty-one thousand, nine hundred seventy-three".