464549989 has 2 divisors, whose sum is σ = 464549990. Its totient is φ = 464549988.

The previous prime is 464549983. The next prime is 464549993. The reversal of 464549989 is 989945464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426629025 + 37920964 = 20655^2 + 6158^2 .

It is a cyclic number.

It is not a de Polignac number, because 464549989 - 2⁵ = 464549957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464549983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232274994 + 232274995.

It is an arithmetic number, because the mean of its divisors is an integer number (232274995).

Almost surely, 2^464549989 is an apocalyptic number.

It is an amenable number.

464549989 is a deficient number, since it is larger than the sum of its proper divisors (1).

464549989 is an equidigital number, since it uses as much as digits as its factorization.

464549989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 58.

The square root of 464549989 is about 21553.4217469060. The cubic root of 464549989 is about 774.4810894714.

The spelling of 464549989 in words is "four hundred sixty-four million, five hundred forty-nine thousand, nine hundred eighty-nine".