89379509 has 4 divisors (see below), whose sum is σ = 89486880. Its totient is φ = 89272140.

The previous prime is 89379481. The next prime is 89379517. The reversal of 89379509 is 90597398.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90597398 = 2 ⋅45298699.

It is a cyclic number.

It is not a de Polignac number, because 89379509 - 2¹² = 89375413 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 (89379209) 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, 52427 + ... + 54104.

It is an arithmetic number, because the mean of its divisors is an integer number (22371720).

Almost surely, 2^89379509 is an apocalyptic number.

It is an amenable number.

89379509 is a deficient number, since it is larger than the sum of its proper divisors (107371).

89379509 is a wasteful number, since it uses less digits than its factorization.

89379509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107370.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 89379509 is about 9454.0736722325. The cubic root of 89379509 is about 447.1082205062.

The spelling of 89379509 in words is "eighty-nine million, three hundred seventy-nine thousand, five hundred nine".