99623671 has 16 divisors (see below), whose sum is σ = 118152000. Its totient is φ = 82188288.

The previous prime is 99623659. The next prime is 99623681. The reversal of 99623671 is 17632699.

It is not a de Polignac number, because 99623671 - 2⁹ = 99623159 is a prime.

It is a pancake number, because a pancake can be divided into 99623671 parts by 14115 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99623651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90601 + ... + 91693.

It is an arithmetic number, because the mean of its divisors is an integer number (7384500).

Almost surely, 2^99623671 is an apocalyptic number.

99623671 is a deficient number, since it is larger than the sum of its proper divisors (18528329).

99623671 is a wasteful number, since it uses less digits than its factorization.

99623671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its digits is 122472, while the sum is 43.

The square root of 99623671 is about 9981.1658136713. The cubic root of 99623671 is about 463.5758966044.

The spelling of 99623671 in words is "ninety-nine million, six hundred twenty-three thousand, six hundred seventy-one".