1376889 has 4 divisors (see below), whose sum is σ = 1835856. Its totient is φ = 917924.

The previous prime is 1376839. The next prime is 1376897. The reversal of 1376889 is 9886731.

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.

It is a cyclic number.

It is not a de Polignac number, because 1376889 - 2⁹ = 1376377 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1376889.

It is not an unprimeable number, because it can be changed into a prime (1376819) 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, 229479 + ... + 229484.

It is an arithmetic number, because the mean of its divisors is an integer number (458964).

2^1376889 is an apocalyptic number.

It is an amenable number.

1376889 is a deficient number, since it is larger than the sum of its proper divisors (458967).

1376889 is an equidigital number, since it uses as much as digits as its factorization.

1376889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458966.

The product of its digits is 72576, while the sum is 42.

The square root of 1376889 is about 1173.4091358090. The cubic root of 1376889 is about 111.2499036316.

The spelling of 1376889 in words is "one million, three hundred seventy-six thousand, eight hundred eighty-nine".