1001396 has 18 divisors (see below), whose sum is σ = 1927170. Its totient is φ = 454960.

The previous prime is 1001389. The next prime is 1001401. The reversal of 1001396 is 6931001.

1001396 = 24² + 25² + ... + 144².

It can be written as a sum of positive squares in only one way, i.e., 698896 + 302500 = 836^2 + 550^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (107065).

2^1001396 is an apocalyptic number.

It is an amenable number.

1001396 is a deficient number, since it is larger than the sum of its proper divisors (925774).

1001396 is a wasteful number, since it uses less digits than its factorization.

1001396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2082 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1001396 is about 1000.6977565679. The cubic root of 1001396 is about 100.0465116966.

Adding to 1001396 its reverse (6931001), we get a palindrome (7932397).

The spelling of 1001396 in words is "one million, one thousand, three hundred ninety-six".