468647989 has 2 divisors, whose sum is σ = 468647990. Its totient is φ = 468647988.

The previous prime is 468647969. The next prime is 468648001. The reversal of 468647989 is 989746864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 464747364 + 3900625 = 21558^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 468647989 - 2⁹ = 468647477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468647969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234323994 + 234323995.

It is an arithmetic number, because the mean of its divisors is an integer number (234323995).

Almost surely, 2^468647989 is an apocalyptic number.

It is an amenable number.

468647989 is a deficient number, since it is larger than the sum of its proper divisors (1).

468647989 is an equidigital number, since it uses as much as digits as its factorization.

468647989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The square root of 468647989 is about 21648.2791232929. The cubic root of 468647989 is about 776.7517718411.

The spelling of 468647989 in words is "four hundred sixty-eight million, six hundred forty-seven thousand, nine hundred eighty-nine".