1338777 has 12 divisors (see below), whose sum is σ = 2109744. Its totient is φ = 811320.

The previous prime is 1338751. The next prime is 1338781. The reversal of 1338777 is 7778331.

It is a happy number.

It is not a de Polignac number, because 1338777 - 2⁸ = 1338521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338737) 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 11 ways as a sum of consecutive naturals, for example, 6663 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (175812).

2^1338777 is an apocalyptic number.

It is an amenable number.

1338777 is a deficient number, since it is larger than the sum of its proper divisors (770967).

1338777 is a wasteful number, since it uses less digits than its factorization.

1338777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540 (or 13537 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 1338777 is about 1157.0553141488. The cubic root of 1338777 is about 110.2138265024.

The spelling of 1338777 in words is "one million, three hundred thirty-eight thousand, seven hundred seventy-seven".