89872245369 has 9 divisors (see below), whose sum is σ = 129816764623. Its totient is φ = 59914230672.

The previous prime is 89872245349. The next prime is 89872245427. The reversal of 89872245369 is 96354227898.

The square root of 89872245369 is 299787.

It is a perfect power (a square), and thus also a powerful number.

89872245369 is a `hidden beast` number, since 8 + 9 + 8 + 72 + 24 + 536 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 88115769 + 89784129600 = 9387^2 + 299640^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 89872245369 - 2¹⁵ = 89872212601 is a prime.

It is a super-2 number, since 2×89872245369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89872245329) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 849397 + ... + 949325.

Almost surely, 2^89872245369 is an apocalyptic number.

89872245369 is the 299787-th square number.

89872245369 is the 149894-th centered octagonal number.

It is an amenable number.

89872245369 is a deficient number, since it is larger than the sum of its proper divisors (39944519254).

89872245369 is an frugal number, since it uses more digits than its factorization.

89872245369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199864 (or 99932 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

It can be divided in two parts, 89872 and 245369, that added together give a square (335241 = 579²).

The spelling of 89872245369 in words is "eighty-nine billion, eight hundred seventy-two million, two hundred forty-five thousand, three hundred sixty-nine".