1379772067 has 2 divisors, whose sum is σ = 1379772068. Its totient is φ = 1379772066.

The previous prime is 1379772059. The next prime is 1379772103. The reversal of 1379772067 is 7602779731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379772067 - 2³ = 1379772059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1379772067.

It is not a weakly prime, because it can be changed into another prime (1379772007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689886033 + 689886034.

It is an arithmetic number, because the mean of its divisors is an integer number (689886034).

Almost surely, 2^1379772067 is an apocalyptic number.

1379772067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379772067 is an equidigital number, since it uses as much as digits as its factorization.

1379772067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777924, while the sum is 49.

The square root of 1379772067 is about 37145.2832402716. The cubic root of 1379772067 is about 1113.2749819916.

The spelling of 1379772067 in words is "one billion, three hundred seventy-nine million, seven hundred seventy-two thousand, sixty-seven".