992647 has 4 divisors (see below), whose sum is σ = 1051056. Its totient is φ = 934240.

The previous prime is 992633. The next prime is 992659. The reversal of 992647 is 746299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746299 = 233 ⋅3203.

It is a cyclic number.

It is not a de Polignac number, because 992647 - 2¹¹ = 990599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992947) by changing a digit.

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, 29179 + ... + 29212.

It is an arithmetic number, because the mean of its divisors is an integer number (262764).

2⁹⁹²⁶⁴⁷ is an apocalyptic number.

992647 is a deficient number, since it is larger than the sum of its proper divisors (58409).

992647 is a wasteful number, since it uses less digits than its factorization.

992647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58408.

The product of its digits is 27216, while the sum is 37.

The square root of 992647 is about 996.3167167121. The cubic root of 992647 is about 99.7542967938.

The spelling of 992647 in words is "nine hundred ninety-two thousand, six hundred forty-seven".