1338997 has 4 divisors (see below), whose sum is σ = 1460736. Its totient is φ = 1217260.

The previous prime is 1338979. The next prime is 1339001. The reversal of 1338997 is 7998331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7998331 = 11 ⋅727121.

It is not a de Polignac number, because 1338997 - 2¹¹ = 1336949 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 (1338907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60853 + ... + 60874.

It is an arithmetic number, because the mean of its divisors is an integer number (365184).

2^1338997 is an apocalyptic number.

It is an amenable number.

1338997 is a deficient number, since it is larger than the sum of its proper divisors (121739).

1338997 is a wasteful number, since it uses less digits than its factorization.

1338997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121738.

The product of its digits is 40824, while the sum is 40.

The square root of 1338997 is about 1157.1503791643. The cubic root of 1338997 is about 110.2198632842.

The spelling of 1338997 in words is "one million, three hundred thirty-eight thousand, nine hundred ninety-seven".