1489898717 has 8 divisors (see below), whose sum is σ = 1579435200. Its totient is φ = 1400572864.

The previous prime is 1489898687. The next prime is 1489898723. The reversal of 1489898717 is 7178989841.

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

It is a cyclic number.

It is not a de Polignac number, because 1489898717 - 2²⁴ = 1473121501 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 1489898717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489898797) 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, 37967 + ... + 66492.

It is an arithmetic number, because the mean of its divisors is an integer number (197429400).

Almost surely, 2^1489898717 is an apocalyptic number.

1489898717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1489898717 is a deficient number, since it is larger than the sum of its proper divisors (89536483).

1489898717 is a wasteful number, since it uses less digits than its factorization.

1489898717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105315.

The product of its digits is 8128512, while the sum is 62.

The square root of 1489898717 is about 38599.2061705937. The cubic root of 1489898717 is about 1142.1388789853.

The spelling of 1489898717 in words is "one billion, four hundred eighty-nine million, eight hundred ninety-eight thousand, seven hundred seventeen".