1023487 has 2 divisors, whose sum is σ = 1023488. Its totient is φ = 1023486.

The previous prime is 1023467. The next prime is 1023499. The reversal of 1023487 is 7843201.

It is a strong prime.

It is an emirp because it is prime and its reverse (7843201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023487 - 2¹⁵ = 990719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511743 + 511744.

It is an arithmetic number, because the mean of its divisors is an integer number (511744).

2^1023487 is an apocalyptic number.

1023487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023487 is an equidigital number, since it uses as much as digits as its factorization.

1023487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1023487 is about 1011.6753431808. The cubic root of 1023487 is about 100.7768494223.

Adding to 1023487 its reverse (7843201), we get a palindrome (8866688).

The spelling of 1023487 in words is "one million, twenty-three thousand, four hundred eighty-seven".