1487641 has 2 divisors, whose sum is σ = 1487642. Its totient is φ = 1487640.

The previous prime is 1487623. The next prime is 1487711. The reversal of 1487641 is 1467841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1449616 + 38025 = 1204^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487641 - 2¹³ = 1479449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1487441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743820 + 743821.

It is an arithmetic number, because the mean of its divisors is an integer number (743821).

2^1487641 is an apocalyptic number.

It is an amenable number.

1487641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487641 is an equidigital number, since it uses as much as digits as its factorization.

1487641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 1487641 is about 1219.6888947596. The cubic root of 1487641 is about 114.1561674209.

The spelling of 1487641 in words is "one million, four hundred eighty-seven thousand, six hundred forty-one".