465263989 has 2 divisors, whose sum is σ = 465263990. Its totient is φ = 465263988.

The previous prime is 465263977. The next prime is 465264043. The reversal of 465263989 is 989362564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278723025 + 186540964 = 16695^2 + 13658^2 .

It is a cyclic number.

It is not a de Polignac number, because 465263989 - 2¹¹ = 465261941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465263969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232631994 + 232631995.

It is an arithmetic number, because the mean of its divisors is an integer number (232631995).

Almost surely, 2^465263989 is an apocalyptic number.

It is an amenable number.

465263989 is a deficient number, since it is larger than the sum of its proper divisors (1).

465263989 is an equidigital number, since it uses as much as digits as its factorization.

465263989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The square root of 465263989 is about 21569.9788826971. The cubic root of 465263989 is about 774.8776714311.

The spelling of 465263989 in words is "four hundred sixty-five million, two hundred sixty-three thousand, nine hundred eighty-nine".