992506321 has 8 divisors (see below), whose sum is σ = 1006845480. Its totient is φ = 978187392.

The previous prime is 992506297. The next prime is 992506337. The reversal of 992506321 is 123605299.

992506321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 90345025 + 902161296 = 9505^2 + 30036^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-992506321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (992506391) 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, 113535 + ... + 121963.

It is an arithmetic number, because the mean of its divisors is an integer number (125855685).

Almost surely, 2^992506321 is an apocalyptic number.

It is an amenable number.

992506321 is a deficient number, since it is larger than the sum of its proper divisors (14339159).

992506321 is a wasteful number, since it uses less digits than its factorization.

992506321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 992506321 is about 31504.0683245831. The cubic root of 992506321 is about 997.4958414242.

The spelling of 992506321 in words is "nine hundred ninety-two million, five hundred six thousand, three hundred twenty-one".