1384012687 has 24 divisors (see below), whose sum is σ = 1581714000. Its totient is φ = 1203471360.

The previous prime is 1384012681. The next prime is 1384012703. The reversal of 1384012687 is 7862104831.

It is a de Polignac number, because none of the positive numbers 2^k-1384012687 is a prime.

It is a super-2 number, since 2×1384012687² = 3830982235553919938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384012681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541689 + ... + 544237.

It is an arithmetic number, because the mean of its divisors is an integer number (65904750).

Almost surely, 2^1384012687 is an apocalyptic number.

1384012687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1384012687 is a deficient number, since it is larger than the sum of its proper divisors (197701313).

1384012687 is a wasteful number, since it uses less digits than its factorization.

1384012687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1384012687 is about 37202.3209894222. The cubic root of 1384012687 is about 1114.4143363321.

The spelling of 1384012687 in words is "one billion, three hundred eighty-four million, twelve thousand, six hundred eighty-seven".