214422709 has 2 divisors, whose sum is σ = 214422710. Its totient is φ = 214422708.

The previous prime is 214422679. The next prime is 214422727. The reversal of 214422709 is 907224412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178302609 + 36120100 = 13353^2 + 6010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214422709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214422739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107211354 + 107211355.

It is an arithmetic number, because the mean of its divisors is an integer number (107211355).

Almost surely, 2^214422709 is an apocalyptic number.

It is an amenable number.

214422709 is a deficient number, since it is larger than the sum of its proper divisors (1).

214422709 is an equidigital number, since it uses as much as digits as its factorization.

214422709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 214422709 is about 14643.1796069023. The cubic root of 214422709 is about 598.5359759987.

The spelling of 214422709 in words is "two hundred fourteen million, four hundred twenty-two thousand, seven hundred nine".