214661747 has 2 divisors, whose sum is σ = 214661748. Its totient is φ = 214661746.

The previous prime is 214661729. The next prime is 214661749. The reversal of 214661747 is 747166412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214661747 - 2¹⁰ = 214660723 is a prime.

Together with 214661749, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214661747.

It is not a weakly prime, because it can be changed into another prime (214661749) 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, 107330873 + 107330874.

It is an arithmetic number, because the mean of its divisors is an integer number (107330874).

Almost surely, 2^214661747 is an apocalyptic number.

214661747 is a deficient number, since it is larger than the sum of its proper divisors (1).

214661747 is an equidigital number, since it uses as much as digits as its factorization.

214661747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 214661747 is about 14651.3394268237. The cubic root of 214661747 is about 598.7583089634.

The spelling of 214661747 in words is "two hundred fourteen million, six hundred sixty-one thousand, seven hundred forty-seven".