1490469787 has 2 divisors, whose sum is σ = 1490469788. Its totient is φ = 1490469786.

The previous prime is 1490469751. The next prime is 1490469817. The reversal of 1490469787 is 7879640941.

It is a strong prime.

It is an emirp because it is prime and its reverse (7879640941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1490469787 - 2¹¹ = 1490467739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1490469737) 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, 745234893 + 745234894.

It is an arithmetic number, because the mean of its divisors is an integer number (745234894).

Almost surely, 2^1490469787 is an apocalyptic number.

1490469787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490469787 is an equidigital number, since it uses as much as digits as its factorization.

1490469787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 1490469787 is about 38606.6028938056. The cubic root of 1490469787 is about 1142.2847855328.

The spelling of 1490469787 in words is "one billion, four hundred ninety million, four hundred sixty-nine thousand, seven hundred eighty-seven".