189706607 has 2 divisors, whose sum is σ = 189706608. Its totient is φ = 189706606.

The previous prime is 189706597. The next prime is 189706609. The reversal of 189706607 is 706607981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189706607 - 2⁴ = 189706591 is a prime.

Together with 189706609, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189706609) 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, 94853303 + 94853304.

It is an arithmetic number, because the mean of its divisors is an integer number (94853304).

Almost surely, 2^189706607 is an apocalyptic number.

189706607 is a deficient number, since it is larger than the sum of its proper divisors (1).

189706607 is an equidigital number, since it uses as much as digits as its factorization.

189706607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 189706607 is about 13773.4021577822. The cubic root of 189706607 is about 574.5936455989.

The spelling of 189706607 in words is "one hundred eighty-nine million, seven hundred six thousand, six hundred seven".