1385996867 has 4 divisors (see below), whose sum is σ = 1398262440. Its totient is φ = 1373731296.

The previous prime is 1385996861. The next prime is 1385996869. The reversal of 1385996867 is 7686995831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7686995831 = 5441 ⋅1412791.

It is a cyclic number.

It is not a de Polignac number, because 1385996867 - 2¹⁸ = 1385734723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385996861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132617 + ... + 6132842.

It is an arithmetic number, because the mean of its divisors is an integer number (349565610).

Almost surely, 2^1385996867 is an apocalyptic number.

1385996867 is a deficient number, since it is larger than the sum of its proper divisors (12265573).

1385996867 is a wasteful number, since it uses less digits than its factorization.

1385996867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265572.

The product of its digits is 19595520, while the sum is 62.

The square root of 1385996867 is about 37228.9788605597. The cubic root of 1385996867 is about 1114.9466394460.

The spelling of 1385996867 in words is "one billion, three hundred eighty-five million, nine hundred ninety-six thousand, eight hundred sixty-seven".