1387347111 has 48 divisors (see below), whose sum is σ = 2143498240. Its totient is φ = 862202880.

The previous prime is 1387347103. The next prime is 1387347113. The reversal of 1387347111 is 1117437831.

1387347111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1387347111 - 2³ = 1387347103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387347113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4191216 + ... + 4191546.

Almost surely, 2^1387347111 is an apocalyptic number.

1387347111 is a deficient number, since it is larger than the sum of its proper divisors (756151129).

1387347111 is a wasteful number, since it uses less digits than its factorization.

1387347111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 673 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 1387347111 is about 37247.1087602783. The cubic root of 1387347111 is about 1115.3085838435.

The spelling of 1387347111 in words is "one billion, three hundred eighty-seven million, three hundred forty-seven thousand, one hundred eleven".