996427 has 4 divisors (see below), whose sum is σ = 1009120. Its totient is φ = 983736.

The previous prime is 996409. The next prime is 996431. The reversal of 996427 is 724699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724699 = 281 ⋅2579.

It is a cyclic number.

It is not a de Polignac number, because 996427 - 2¹⁵ = 963659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996407) 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, 6228 + ... + 6385.

It is an arithmetic number, because the mean of its divisors is an integer number (252280).

2⁹⁹⁶⁴²⁷ is an apocalyptic number.

996427 is a deficient number, since it is larger than the sum of its proper divisors (12693).

996427 is a wasteful number, since it uses less digits than its factorization.

996427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12692.

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

The square root of 996427 is about 998.2119013516. The cubic root of 996427 is about 99.8807578697.

The spelling of 996427 in words is "nine hundred ninety-six thousand, four hundred twenty-seven".