1489693801 has 2 divisors, whose sum is σ = 1489693802. Its totient is φ = 1489693800.

The previous prime is 1489693789. The next prime is 1489693819. The reversal of 1489693801 is 1083969841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376484201 + 113209600 = 37101^2 + 10640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489693801 - 2⁵ = 1489693769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1489693501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744846900 + 744846901.

It is an arithmetic number, because the mean of its divisors is an integer number (744846901).

Almost surely, 2^1489693801 is an apocalyptic number.

It is an amenable number.

1489693801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1489693801 is an equidigital number, since it uses as much as digits as its factorization.

1489693801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 1489693801 is about 38596.5516723968. The cubic root of 1489693801 is about 1142.0865145172.

The spelling of 1489693801 in words is "one billion, four hundred eighty-nine million, six hundred ninety-three thousand, eight hundred one".