7661065 has 8 divisors (see below), whose sum is σ = 9278280. Its totient is φ = 6072192.

The previous prime is 7661057. The next prime is 7661077. The reversal of 7661065 is 5601667.

It can be written as a sum of positive squares in 4 ways, for example, as 109561 + 7551504 = 331^2 + 2748^2 .

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 7661065 - 2³ = 7661057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6484 + ... + 7573.

It is an arithmetic number, because the mean of its divisors is an integer number (1159785).

Almost surely, 2^7661065 is an apocalyptic number.

It is an amenable number.

7661065 is a deficient number, since it is larger than the sum of its proper divisors (1617215).

7661065 is a wasteful number, since it uses less digits than its factorization.

7661065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7661065 is about 2767.8628940032. The cubic root of 7661065 is about 197.1346876272.

The spelling of 7661065 in words is "seven million, six hundred sixty-one thousand, sixty-five".