1489929893 has 4 divisors (see below), whose sum is σ = 1490016780. Its totient is φ = 1489843008.

The previous prime is 1489929887. The next prime is 1489929899. The reversal of 1489929893 is 3989299841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1489929887) and next prime (1489929899).

It can be written as a sum of positive squares in 2 ways, for example, as 760821889 + 729108004 = 27583^2 + 27002^2 .

It is a cyclic number.

It is not a de Polignac number, because 1489929893 - 2⁴ = 1489929877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489929899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8180 + ... + 55197.

It is an arithmetic number, because the mean of its divisors is an integer number (372504195).

Almost surely, 2^1489929893 is an apocalyptic number.

It is an amenable number.

1489929893 is a deficient number, since it is larger than the sum of its proper divisors (86887).

1489929893 is an equidigital number, since it uses as much as digits as its factorization.

1489929893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86886.

The product of its digits is 10077696, while the sum is 62.

The square root of 1489929893 is about 38599.6100109833. The cubic root of 1489929893 is about 1142.1468453150.

The spelling of 1489929893 in words is "one billion, four hundred eighty-nine million, nine hundred twenty-nine thousand, eight hundred ninety-three".