214964389 has 2 divisors, whose sum is σ = 214964390. Its totient is φ = 214964388.

The previous prime is 214964383. The next prime is 214964419. The reversal of 214964389 is 983469412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214769025 + 195364 = 14655^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 214964389 - 2³ = 214964381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214964381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107482194 + 107482195.

It is an arithmetic number, because the mean of its divisors is an integer number (107482195).

Almost surely, 2^214964389 is an apocalyptic number.

It is an amenable number.

214964389 is a deficient number, since it is larger than the sum of its proper divisors (1).

214964389 is an equidigital number, since it uses as much as digits as its factorization.

214964389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 214964389 is about 14661.6639233069. The cubic root of 214964389 is about 599.0395643519.

The spelling of 214964389 in words is "two hundred fourteen million, nine hundred sixty-four thousand, three hundred eighty-nine".