969820 has 12 divisors (see below), whose sum is σ = 2036664. Its totient is φ = 387920.

The previous prime is 969809. The next prime is 969821. The reversal of 969820 is 28969.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969821) by changing a digit.

969820 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 24226 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (169722).

2⁹⁶⁹⁸²⁰ is an apocalyptic number.

It is an amenable number.

969820 is an abundant number, since it is smaller than the sum of its proper divisors (1066844).

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

969820 is a wasteful number, since it uses less digits than its factorization.

969820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48500 (or 48498 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 969820 is about 984.7943947850. The cubic root of 969820 is about 98.9837064639.

The spelling of 969820 in words is "nine hundred sixty-nine thousand, eight hundred twenty".