1346846789 has 2 divisors, whose sum is σ = 1346846790. Its totient is φ = 1346846788.

The previous prime is 1346846773. The next prime is 1346846791. The reversal of 1346846789 is 9876486431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704477764 + 642369025 = 26542^2 + 25345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346846789 - 2⁴ = 1346846773 is a prime.

It is a super-2 number, since 2×1346846789² = 3627992546079221042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1346846791, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346846729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673423394 + 673423395.

It is an arithmetic number, because the mean of its divisors is an integer number (673423395).

Almost surely, 2^1346846789 is an apocalyptic number.

It is an amenable number.

1346846789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346846789 is an equidigital number, since it uses as much as digits as its factorization.

1346846789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 56.

The square root of 1346846789 is about 36699.4112895561. The cubic root of 1346846789 is about 1104.3482951708.

The spelling of 1346846789 in words is "one billion, three hundred forty-six million, eight hundred forty-six thousand, seven hundred eighty-nine".