89759989 has 8 divisors (see below), whose sum is σ = 100003968. Its totient is φ = 79863360.

The previous prime is 89759981. The next prime is 89760001. The reversal of 89759989 is 98995798.

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

It is a cyclic number.

It is not a de Polignac number, because 89759989 - 2³ = 89759981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89759989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89759981) 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, 86292 + ... + 87325.

It is an arithmetic number, because the mean of its divisors is an integer number (12500496).

Almost surely, 2^89759989 is an apocalyptic number.

It is an amenable number.

89759989 is a deficient number, since it is larger than the sum of its proper divisors (10243979).

89759989 is a wasteful number, since it uses less digits than its factorization.

89759989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173675.

The product of its digits is 14696640, while the sum is 64.

The square root of 89759989 is about 9474.1748453361. The cubic root of 89759989 is about 447.7417546652.

The spelling of 89759989 in words is "eighty-nine million, seven hundred fifty-nine thousand, nine hundred eighty-nine".