99823667 has 4 divisors (see below), whose sum is σ = 100346496. Its totient is φ = 99300840.

The previous prime is 99823639. The next prime is 99823681. The reversal of 99823667 is 76632899.

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 99823667 - 2¹⁴ = 99807283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99823637) 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, 261128 + ... + 261509.

It is an arithmetic number, because the mean of its divisors is an integer number (25086624).

Almost surely, 2^99823667 is an apocalyptic number.

99823667 is a deficient number, since it is larger than the sum of its proper divisors (522829).

99823667 is a wasteful number, since it uses less digits than its factorization.

99823667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522828.

The product of its digits is 979776, while the sum is 50.

The square root of 99823667 is about 9991.1794599036. The cubic root of 99823667 is about 463.8859010845.

The spelling of 99823667 in words is "ninety-nine million, eight hundred twenty-three thousand, six hundred sixty-seven".