966555 has 24 divisors (see below), whose sum is σ = 1714752. Its totient is φ = 503424.

The previous prime is 966547. The next prime is 966557. The reversal of 966555 is 555669.

It is not a de Polignac number, because 966555 - 2³ = 966547 is a prime.

966555 is a lucky number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (966557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1887 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (71448).

2⁹⁶⁶⁵⁵⁵ is an apocalyptic number.

966555 is a deficient number, since it is larger than the sum of its proper divisors (748197).

966555 is a wasteful number, since it uses less digits than its factorization.

966555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 512 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 966555 is about 983.1352907917. The cubic root of 966555 is about 98.8725019254.

It can be divided in two parts, 966 and 555, that multiplied together give a triangular number (536130 = T₁₀₃₅).

The spelling of 966555 in words is "nine hundred sixty-six thousand, five hundred fifty-five".