1346744779 has 2 divisors, whose sum is σ = 1346744780. Its totient is φ = 1346744778.

The previous prime is 1346744771. The next prime is 1346744801. The reversal of 1346744779 is 9774476431.

It is a weak prime.

It is an emirp because it is prime and its reverse (9774476431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1346744779 - 2³ = 1346744771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1346744771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673372389 + 673372390.

It is an arithmetic number, because the mean of its divisors is an integer number (673372390).

Almost surely, 2^1346744779 is an apocalyptic number.

1346744779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346744779 is an equidigital number, since it uses as much as digits as its factorization.

1346744779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 52.

The square root of 1346744779 is about 36698.0214589288. The cubic root of 1346744779 is about 1104.3204134016.

The spelling of 1346744779 in words is "one billion, three hundred forty-six million, seven hundred forty-four thousand, seven hundred seventy-nine".