1487117 has 2 divisors, whose sum is σ = 1487118. Its totient is φ = 1487116.

The previous prime is 1487113. The next prime is 1487131. The reversal of 1487117 is 7117841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1485961 + 1156 = 1219^2 + 34^2 .

It is an emirp because it is prime and its reverse (7117841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1487117 - 2² = 1487113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1487117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743558 + 743559.

It is an arithmetic number, because the mean of its divisors is an integer number (743559).

2^1487117 is an apocalyptic number.

It is an amenable number.

1487117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487117 is an equidigital number, since it uses as much as digits as its factorization.

1487117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568, while the sum is 29.

The square root of 1487117 is about 1219.4740669649. The cubic root of 1487117 is about 114.1427625612.

The spelling of 1487117 in words is "one million, four hundred eighty-seven thousand, one hundred seventeen".