899000065 has 4 divisors (see below), whose sum is σ = 1078800084. Its totient is φ = 719200048.

The previous prime is 899000059. The next prime is 899000077. The reversal of 899000065 is 560000998.

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 284158449 + 614841616 = 16857^2 + 24796^2 .

It is a cyclic number.

It is not a de Polignac number, because 899000065 - 2¹¹ = 898998017 is a prime.

It is a super-2 number, since 2×899000065² = 1616402233740008450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 898999988 and 899000033.

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, 89900002 + ... + 89900011.

It is an arithmetic number, because the mean of its divisors is an integer number (269700021).

Almost surely, 2^899000065 is an apocalyptic number.

It is an amenable number.

899000065 is a deficient number, since it is larger than the sum of its proper divisors (179800019).

899000065 is a wasteful number, since it uses less digits than its factorization.

899000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179800018.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 899000065 is about 29983.3297850656. The cubic root of 899000065 is about 965.1316866831.

The spelling of 899000065 in words is "eight hundred ninety-nine million, sixty-five", and thus it is an aban number.