1387107 has 12 divisors (see below), whose sum is σ = 2091024. Its totient is φ = 884400.
The previous prime is 1387069. The next prime is 1387109. The reversal of 1387107 is 7017831.
It is not a de Polignac number, because 1387107 - 210 = 1386083 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1387109) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3144 + ... + 3557.
It is an arithmetic number, because the mean of its divisors is an integer number (174252).
21387107 is an apocalyptic number.
1387107 is a deficient number, since it is larger than the sum of its proper divisors (703917).
1387107 is a wasteful number, since it uses less digits than its factorization.
1387107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6730 (or 6727 counting only the distinct ones).
The product of its (nonzero) digits is 1176, while the sum is 27.
The square root of 1387107 is about 1177.7550679152. The cubic root of 1387107 is about 111.5244237219.
The spelling of 1387107 in words is "one million, three hundred eighty-seven thousand, one hundred seven".
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