1384938986 has 4 divisors (see below), whose sum is σ = 2077408482. Its totient is φ = 692469492.

The previous prime is 1384938941. The next prime is 1384939001. The reversal of 1384938986 is 6898394831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6898394831 = 47563 ⋅145037.

It can be written as a sum of positive squares in only one way, i.e., 1382426761 + 2512225 = 37181^2 + 1585^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346234745 + ... + 346234748.

Almost surely, 2^1384938986 is an apocalyptic number.

1384938986 is a deficient number, since it is larger than the sum of its proper divisors (692469496).

1384938986 is an equidigital number, since it uses as much as digits as its factorization.

1384938986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692469495.

The product of its digits is 8957952, while the sum is 59.

The square root of 1384938986 is about 37214.7683856826. The cubic root of 1384938986 is about 1114.6629011716.

The spelling of 1384938986 in words is "one billion, three hundred eighty-four million, nine hundred thirty-eight thousand, nine hundred eighty-six".