1587361 has 2 divisors, whose sum is σ = 1587362. Its totient is φ = 1587360.

The previous prime is 1587349. The next prime is 1587389. The reversal of 1587361 is 1637851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 463761 = 1060^2 + 681^2 .

It is an emirp because it is prime and its reverse (1637851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1587361 - 2¹¹ = 1585313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1587301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793680 + 793681.

It is an arithmetic number, because the mean of its divisors is an integer number (793681).

2^1587361 is an apocalyptic number.

It is an amenable number.

1587361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1587361 is an equidigital number, since it uses as much as digits as its factorization.

1587361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 1587361 is about 1259.9051551605. The cubic root of 1587361 is about 116.6519228534.

The spelling of 1587361 in words is "one million, five hundred eighty-seven thousand, three hundred sixty-one".