1614879989 has 2 divisors, whose sum is σ = 1614879990. Its totient is φ = 1614879988.

The previous prime is 1614879983. The next prime is 1614880013. The reversal of 1614879989 is 9899784161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1284003889 + 330876100 = 35833^2 + 18190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1614879989 - 2²⁰ = 1613831413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1614879983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807439994 + 807439995.

It is an arithmetic number, because the mean of its divisors is an integer number (807439995).

Almost surely, 2^1614879989 is an apocalyptic number.

It is an amenable number.

1614879989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1614879989 is an equidigital number, since it uses as much as digits as its factorization.

1614879989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 62.

The square root of 1614879989 is about 40185.5694124147. The cubic root of 1614879989 is about 1173.2216924078.

The spelling of 1614879989 in words is "one billion, six hundred fourteen million, eight hundred seventy-nine thousand, nine hundred eighty-nine".