1489690663 has 8 divisors (see below), whose sum is σ = 1540455408. Its totient is φ = 1439765184.

The previous prime is 1489690619. The next prime is 1489690673. The reversal of 1489690663 is 3660969841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1489690663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489690663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489690673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206206 + ... + 213307.

It is an arithmetic number, because the mean of its divisors is an integer number (192556926).

Almost surely, 2^1489690663 is an apocalyptic number.

1489690663 is a deficient number, since it is larger than the sum of its proper divisors (50764745).

1489690663 is an equidigital number, since it uses as much as digits as its factorization.

1489690663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419633.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 1489690663 is about 38596.5110210755. The cubic root of 1489690663 is about 1142.0857125918.

The spelling of 1489690663 in words is "one billion, four hundred eighty-nine million, six hundred ninety thousand, six hundred sixty-three".