99789067 has 8 divisors (see below), whose sum is σ = 114112736. Its totient is φ = 85482432.

The previous prime is 99789023. The next prime is 99789071. The reversal of 99789067 is 76098799.

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

It is not a de Polignac number, because 99789067 - 2¹⁵ = 99756299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99788999 and 99789017.

It is not an unprimeable number, because it can be changed into a prime (99789017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12943 + ... + 19159.

It is an arithmetic number, because the mean of its divisors is an integer number (14264092).

Almost surely, 2^99789067 is an apocalyptic number.

99789067 is a deficient number, since it is larger than the sum of its proper divisors (14323669).

99789067 is a wasteful number, since it uses less digits than its factorization.

99789067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 99789067 is about 9989.4477825353. The cubic root of 99789067 is about 463.8322988762.

The spelling of 99789067 in words is "ninety-nine million, seven hundred eighty-nine thousand, sixty-seven".