1006397 has 8 divisors (see below), whose sum is σ = 1161600. Its totient is φ = 854064.

The previous prime is 1006393. The next prime is 1006433. The reversal of 1006397 is 7936001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1006397 - 2² = 1006393 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 (1006391) 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, 104 + ... + 1422.

It is an arithmetic number, because the mean of its divisors is an integer number (145200).

2^1006397 is an apocalyptic number.

It is an amenable number.

1006397 is a deficient number, since it is larger than the sum of its proper divisors (155203).

1006397 is a wasteful number, since it uses less digits than its factorization.

1006397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 1006397 is about 1003.1934010947. The cubic root of 1006397 is about 100.2127802578.

The spelling of 1006397 in words is "one million, six thousand, three hundred ninety-seven".