1238889 has 8 divisors (see below), whose sum is σ = 1657152. Its totient is φ = 823280.

The previous prime is 1238863. The next prime is 1238893. The reversal of 1238889 is 9888321.

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 1238889 - 2⁷ = 1238761 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1238089) 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, 1099 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (207144).

2^1238889 is an apocalyptic number.

It is an amenable number.

1238889 is a deficient number, since it is larger than the sum of its proper divisors (418263).

1238889 is an equidigital number, since it uses as much as digits as its factorization.

1238889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its digits is 27648, while the sum is 39.

The square root of 1238889 is about 1113.0539070503. The cubic root of 1238889 is about 107.4016117996.

The spelling of 1238889 in words is "one million, two hundred thirty-eight thousand, eight hundred eighty-nine".