1387208 has 16 divisors (see below), whose sum is σ = 2646000. Its totient is φ = 681616.
The previous prime is 1387207. The next prime is 1387213. The reversal of 1387208 is 8027831.
It is not an unprimeable number, because it can be changed into a prime (1387207) 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, 998 + ... + 1941.
It is an arithmetic number, because the mean of its divisors is an integer number (165375).
21387208 is an apocalyptic number.
It is an amenable number.
1387208 is a deficient number, since it is larger than the sum of its proper divisors (1258792).
1387208 is a wasteful number, since it uses less digits than its factorization.
1387208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3004 (or 3000 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 29.
The square root of 1387208 is about 1177.7979453200. The cubic root of 1387208 is about 111.5271304810.
The spelling of 1387208 in words is "one million, three hundred eighty-seven thousand, two hundred eight".
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