992120843 has 8 divisors (see below), whose sum is σ = 1149822720. Its totient is φ = 838411560.

The previous prime is 992120839. The next prime is 992120861. The reversal of 992120843 is 348021299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 992120843 - 2² = 992120839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 992120797 and 992120806.

It is not an unprimeable number, because it can be changed into a prime (992120803) 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, 997613 + ... + 998606.

It is an arithmetic number, because the mean of its divisors is an integer number (143727840).

Almost surely, 2^992120843 is an apocalyptic number.

992120843 is a deficient number, since it is larger than the sum of its proper divisors (157701877).

992120843 is a wasteful number, since it uses less digits than its factorization.

992120843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996297.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 992120843 is about 31497.9498221710. The cubic root of 992120843 is about 997.3666860779.

The spelling of 992120843 in words is "nine hundred ninety-two million, one hundred twenty thousand, eight hundred forty-three".