996397 has 4 divisors (see below), whose sum is σ = 998460. Its totient is φ = 994336.

The previous prime is 996367. The next prime is 996403. The reversal of 996397 is 793699.

996397 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 401956 + 594441 = 634^2 + 771^2 .

It is a cyclic number.

It is not a de Polignac number, because 996397 - 2¹⁵ = 963629 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 (996367) 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, 129 + ... + 1417.

It is an arithmetic number, because the mean of its divisors is an integer number (249615).

2⁹⁹⁶³⁹⁷ is an apocalyptic number.

It is an amenable number.

996397 is a deficient number, since it is larger than the sum of its proper divisors (2063).

996397 is a wasteful number, since it uses less digits than its factorization.

996397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062.

The product of its digits is 91854, while the sum is 43.

The square root of 996397 is about 998.1968743690. The cubic root of 996397 is about 99.8797554705.

The spelling of 996397 in words is "nine hundred ninety-six thousand, three hundred ninety-seven".