1069381387 has 4 divisors (see below), whose sum is σ = 1069469856. Its totient is φ = 1069292920.

The previous prime is 1069381373. The next prime is 1069381429. The reversal of 1069381387 is 7831839601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1069381387 - 2⁷ = 1069381259 is a prime.

It is a super-2 number, since 2×1069381387² = 2287153101724087538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1069381087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22564 + ... + 51457.

It is an arithmetic number, because the mean of its divisors is an integer number (267367464).

Almost surely, 2^1069381387 is an apocalyptic number.

1069381387 is a deficient number, since it is larger than the sum of its proper divisors (88469).

1069381387 is an equidigital number, since it uses as much as digits as its factorization.

1069381387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88468.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1069381387 is about 32701.3973248851. The cubic root of 1069381387 is about 1022.6119737967.

The spelling of 1069381387 in words is "one billion, sixty-nine million, three hundred eighty-one thousand, three hundred eighty-seven".