89667309 has 4 divisors (see below), whose sum is σ = 119556416. Its totient is φ = 59778204.

The previous prime is 89667293. The next prime is 89667311. The reversal of 89667309 is 90376698.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 89667309 - 2⁴ = 89667293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89667359) 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, 14944549 + ... + 14944554.

It is an arithmetic number, because the mean of its divisors is an integer number (29889104).

Almost surely, 2^89667309 is an apocalyptic number.

It is an amenable number.

89667309 is a deficient number, since it is larger than the sum of its proper divisors (29889107).

89667309 is a wasteful number, since it uses less digits than its factorization.

89667309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29889106.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 89667309 is about 9469.2823909735. The cubic root of 89667309 is about 447.5875991345.

The spelling of 89667309 in words is "eighty-nine million, six hundred sixty-seven thousand, three hundred nine".