966505 has 4 divisors (see below), whose sum is σ = 1159812. Its totient is φ = 773200.

The previous prime is 966499. The next prime is 966509. The reversal of 966505 is 505669.

It is a happy number.

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 127449 + 839056 = 357^2 + 916^2 .

It is not a de Polignac number, because 966505 - 2⁷ = 966377 is a prime.

It is an Ulam number.

It is a Duffinian number.

966505 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (966509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96646 + ... + 96655.

It is an arithmetic number, because the mean of its divisors is an integer number (289953).

2⁹⁶⁶⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

966505 is a deficient number, since it is larger than the sum of its proper divisors (193307).

966505 is a wasteful number, since it uses less digits than its factorization.

966505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193306.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 966505 is about 983.1098616126. The cubic root of 966505 is about 98.8707970007.

The spelling of 966505 in words is "nine hundred sixty-six thousand, five hundred five".