514664389 has 2 divisors, whose sum is σ = 514664390. Its totient is φ = 514664388.

The previous prime is 514664351. The next prime is 514664393. The reversal of 514664389 is 983466415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388484100 + 126180289 = 19710^2 + 11233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514664389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514664789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257332194 + 257332195.

It is an arithmetic number, because the mean of its divisors is an integer number (257332195).

Almost surely, 2^514664389 is an apocalyptic number.

It is an amenable number.

514664389 is a deficient number, since it is larger than the sum of its proper divisors (1).

514664389 is an equidigital number, since it uses as much as digits as its factorization.

514664389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 514664389 is about 22686.2158369350. The cubic root of 514664389 is about 801.3853023911.

It can be divided in two parts, 51466 and 4389, that added together give a palindrome (55855).

The spelling of 514664389 in words is "five hundred fourteen million, six hundred sixty-four thousand, three hundred eighty-nine".