1379462779 has 2 divisors, whose sum is σ = 1379462780. Its totient is φ = 1379462778.

The previous prime is 1379462771. The next prime is 1379462803. The reversal of 1379462779 is 9772649731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379462779 - 2³ = 1379462771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1379462771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689731389 + 689731390.

It is an arithmetic number, because the mean of its divisors is an integer number (689731390).

Almost surely, 2^1379462779 is an apocalyptic number.

1379462779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379462779 is an equidigital number, since it uses as much as digits as its factorization.

1379462779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 55.

The square root of 1379462779 is about 37141.1197865654. The cubic root of 1379462779 is about 1113.1917923278.

The spelling of 1379462779 in words is "one billion, three hundred seventy-nine million, four hundred sixty-two thousand, seven hundred seventy-nine".