1238887 has 8 divisors (see below), whose sum is σ = 1344896. Its totient is φ = 1134432.

The previous prime is 1238863. The next prime is 1238893. The reversal of 1238887 is 7888321.

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

It is not a de Polignac number, because 1238887 - 2⁷ = 1238759 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 (1238827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (168112).

2^1238887 is an apocalyptic number.

1238887 is a deficient number, since it is larger than the sum of its proper divisors (106009).

1238887 is a wasteful number, since it uses less digits than its factorization.

1238887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its digits is 21504, while the sum is 37.

The square root of 1238887 is about 1113.0530086209. The cubic root of 1238887 is about 107.4015540049.

The spelling of 1238887 in words is "one million, two hundred thirty-eight thousand, eight hundred eighty-seven".