898388965 has 4 divisors (see below), whose sum is σ = 1078066764. Its totient is φ = 718711168.

The previous prime is 898388927. The next prime is 898388977. The reversal of 898388965 is 569883898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309161889 + 589227076 = 17583^2 + 24274^2 .

It is a cyclic number.

It is not a de Polignac number, because 898388965 - 2¹⁵ = 898356197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 898388897 and 898388906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89838892 + ... + 89838901.

It is an arithmetic number, because the mean of its divisors is an integer number (269516691).

Almost surely, 2^898388965 is an apocalyptic number.

It is an amenable number.

898388965 is a deficient number, since it is larger than the sum of its proper divisors (179677799).

898388965 is a wasteful number, since it uses less digits than its factorization.

898388965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179677798.

The product of its digits is 29859840, while the sum is 64.

The square root of 898388965 is about 29973.1373900031. The cubic root of 898388965 is about 964.9129526751.

The spelling of 898388965 in words is "eight hundred ninety-eight million, three hundred eighty-eight thousand, nine hundred sixty-five".