7980565 has 8 divisors (see below), whose sum is σ = 10140120. Its totient is φ = 6008832.

The previous prime is 7980529. The next prime is 7980587. The reversal of 7980565 is 5650897.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106929 + 7873636 = 327^2 + 2806^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7980565 - 2¹³ = 7972373 is a prime.

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, 46860 + ... + 47029.

It is an arithmetic number, because the mean of its divisors is an integer number (1267515).

Almost surely, 2^7980565 is an apocalyptic number.

It is an amenable number.

7980565 is a deficient number, since it is larger than the sum of its proper divisors (2159555).

7980565 is a wasteful number, since it uses less digits than its factorization.

7980565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93911.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 7980565 is about 2824.9893805110. The cubic root of 7980565 is about 199.8379103369.

The spelling of 7980565 in words is "seven million, nine hundred eighty thousand, five hundred sixty-five".