1346789 has 4 divisors (see below), whose sum is σ = 1393260. Its totient is φ = 1300320.

The previous prime is 1346773. The next prime is 1346827. The reversal of 1346789 is 9876431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9876431 = 2129 ⋅4639.

It can be written as a sum of positive squares in 2 ways, for example, as 429025 + 917764 = 655^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346789 - 2⁴ = 1346773 is a prime.

It is a super-2 number, since 2×1346789² = 3627681221042, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346729) 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, 23192 + ... + 23249.

It is an arithmetic number, because the mean of its divisors is an integer number (348315).

2^1346789 is an apocalyptic number.

It is an amenable number.

1346789 is a deficient number, since it is larger than the sum of its proper divisors (46471).

1346789 is an equidigital number, since it uses as much as digits as its factorization.

1346789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46470.

The product of its digits is 36288, while the sum is 38.

The square root of 1346789 is about 1160.5123868361. The cubic root of 1346789 is about 110.4332500230.

The spelling of 1346789 in words is "one million, three hundred forty-six thousand, seven hundred eighty-nine".