1008397 has 4 divisors (see below), whose sum is σ = 1085980. Its totient is φ = 930816.

The previous prime is 1008379. The next prime is 1008401. The reversal of 1008397 is 7938001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7938001 = 587 ⋅13523.

It can be written as a sum of positive squares in 2 ways, for example, as 292681 + 715716 = 541^2 + 846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1008397 - 2¹⁵ = 975629 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 (1008317) 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, 38772 + ... + 38797.

It is an arithmetic number, because the mean of its divisors is an integer number (271495).

2^1008397 is an apocalyptic number.

It is an amenable number.

1008397 is a deficient number, since it is larger than the sum of its proper divisors (77583).

1008397 is an equidigital number, since it uses as much as digits as its factorization.

1008397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77582.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1008397 is about 1004.1897231101. The cubic root of 1008397 is about 100.2791201943.

The spelling of 1008397 in words is "one million, eight thousand, three hundred ninety-seven".