89898765 has 24 divisors (see below), whose sum is σ = 158106144.
Its totient is φ = 43586400.
The previous prime is 89898763. The next prime is 89898769. The reversal of 89898765 is 56789898.
It is a happy number.
89898765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is not a de Polignac number, because 89898765 - 21 = 89898763 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 89898699 and 89898708.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89898763) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22951 + ... + 26580.
It is an arithmetic number, because the mean of its divisors is an integer number (6587756).
Almost surely, 289898765 is an apocalyptic number.
It is an amenable number.
89898765 is a deficient number, since it is larger than the sum of its proper divisors (68207379).
89898765 is a wasteful number, since it uses less digits than its factorization.
89898765 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49561 (or 49550 counting only the distinct ones).
The product of its digits is 8709120, while the sum is 60.
The square root of 89898765 is about 9481.4959262766.
The cubic root of 89898765 is about 447.9723838339.
The spelling of 89898765 in words is "eighty-nine million, eight hundred ninety-eight thousand, seven hundred sixty-five".