1387410979 has 2 divisors, whose sum is σ = 1387410980. Its totient is φ = 1387410978.

The previous prime is 1387410977. The next prime is 1387411007. The reversal of 1387410979 is 9790147831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1387410979 - 2¹ = 1387410977 is a prime.

Together with 1387410977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1387410971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693705489 + 693705490.

It is an arithmetic number, because the mean of its divisors is an integer number (693705490).

Almost surely, 2^1387410979 is an apocalyptic number.

1387410979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387410979 is an equidigital number, since it uses as much as digits as its factorization.

1387410979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1387410979 is about 37247.9661055473. The cubic root of 1387410979 is about 1115.3256983865.

The spelling of 1387410979 in words is "one billion, three hundred eighty-seven million, four hundred ten thousand, nine hundred seventy-nine".