9912565 has 8 divisors (see below), whose sum is σ = 12810168. Its totient is φ = 7320000.

The previous prime is 9912557. The next prime is 9912589. The reversal of 9912565 is 5652199.

9912565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 9872164 = 201^2 + 3142^2 .

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

It is not a de Polignac number, because 9912565 - 2³ = 9912557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76186 + ... + 76315.

It is an arithmetic number, because the mean of its divisors is an integer number (1601271).

Almost surely, 2^9912565 is an apocalyptic number.

It is an amenable number.

9912565 is a deficient number, since it is larger than the sum of its proper divisors (2897603).

9912565 is a wasteful number, since it uses less digits than its factorization.

9912565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152519.

The product of its digits is 24300, while the sum is 37.

The square root of 9912565 is about 3148.4226209326. The cubic root of 9912565 is about 214.8137200275.

The spelling of 9912565 in words is "nine million, nine hundred twelve thousand, five hundred sixty-five".