264862289 has 2 divisors, whose sum is σ = 264862290. Its totient is φ = 264862288.

The previous prime is 264862277. The next prime is 264862291. The reversal of 264862289 is 982268462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144192064 + 120670225 = 12008^2 + 10985^2 .

It is a cyclic number.

It is not a de Polignac number, because 264862289 - 2¹² = 264858193 is a prime.

Together with 264862291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264862259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132431144 + 132431145.

It is an arithmetic number, because the mean of its divisors is an integer number (132431145).

Almost surely, 2^264862289 is an apocalyptic number.

It is an amenable number.

264862289 is a deficient number, since it is larger than the sum of its proper divisors (1).

264862289 is an equidigital number, since it uses as much as digits as its factorization.

264862289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 47.

The square root of 264862289 is about 16274.5902867015. The cubic root of 264862289 is about 642.2045467410.

The spelling of 264862289 in words is "two hundred sixty-four million, eight hundred sixty-two thousand, two hundred eighty-nine".