346625689 has 2 divisors, whose sum is σ = 346625690. Its totient is φ = 346625688.

The previous prime is 346625677. The next prime is 346625707. The reversal of 346625689 is 986526643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344473600 + 2152089 = 18560^2 + 1467^2 .

It is a cyclic number.

It is not a de Polignac number, because 346625689 - 2⁷ = 346625561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346625089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173312844 + 173312845.

It is an arithmetic number, because the mean of its divisors is an integer number (173312845).

Almost surely, 2^346625689 is an apocalyptic number.

It is an amenable number.

346625689 is a deficient number, since it is larger than the sum of its proper divisors (1).

346625689 is an equidigital number, since it uses as much as digits as its factorization.

346625689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 49.

The square root of 346625689 is about 18617.8862656318. The cubic root of 346625689 is about 702.4578152081.

The spelling of 346625689 in words is "three hundred forty-six million, six hundred twenty-five thousand, six hundred eighty-nine".