468719989 has 2 divisors, whose sum is σ = 468719990. Its totient is φ = 468719988.

The previous prime is 468719981. The next prime is 468720019. The reversal of 468719989 is 989917864.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401200900 + 67519089 = 20030^2 + 8217^2 .

It is a cyclic number.

It is not a de Polignac number, because 468719989 - 2³ = 468719981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468719981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234359994 + 234359995.

It is an arithmetic number, because the mean of its divisors is an integer number (234359995).

Almost surely, 2^468719989 is an apocalyptic number.

It is an amenable number.

468719989 is a deficient number, since it is larger than the sum of its proper divisors (1).

468719989 is an equidigital number, since it uses as much as digits as its factorization.

468719989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 61.

The square root of 468719989 is about 21649.9420091602. The cubic root of 468719989 is about 776.7915481516.

The spelling of 468719989 in words is "four hundred sixty-eight million, seven hundred nineteen thousand, nine hundred eighty-nine".