840966 has 16 divisors (see below), whose sum is σ = 1922304. Its totient is φ = 240264.

The previous prime is 840943. The next prime is 840967. The reversal of 840966 is 669048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9970 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (120144).

2⁸⁴⁰⁹⁶⁶ is an apocalyptic number.

840966 is an abundant number, since it is smaller than the sum of its proper divisors (1081338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840966 is a wasteful number, since it uses less digits than its factorization.

840966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 840966 is about 917.0419837717. The cubic root of 840966 is about 94.3900347376.

The spelling of 840966 in words is "eight hundred forty thousand, nine hundred sixty-six".