7900565 has 8 divisors (see below), whose sum is σ = 9500760. Its totient is φ = 6307072.

The previous prime is 7900549. The next prime is 7900583. The reversal of 7900565 is 5650097.

It can be written as a sum of positive squares in 4 ways, for example, as 21316 + 7879249 = 146^2 + 2807^2 .

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 7900565 - 2⁴ = 7900549 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, 1457 + ... + 4233.

It is an arithmetic number, because the mean of its divisors is an integer number (1187595).

Almost surely, 2^7900565 is an apocalyptic number.

It is an amenable number.

7900565 is a deficient number, since it is larger than the sum of its proper divisors (1600195).

7900565 is a wasteful number, since it uses less digits than its factorization.

7900565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 7900565 is about 2810.7943717035. The cubic root of 7900565 is about 199.1679179986.

The spelling of 7900565 in words is "seven million, nine hundred thousand, five hundred sixty-five".