346535989 has 2 divisors, whose sum is σ = 346535990. Its totient is φ = 346535988.

The previous prime is 346535983. The next prime is 346536017. The reversal of 346535989 is 989535643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325513764 + 21022225 = 18042^2 + 4585^2 .

It is a cyclic number.

It is not a de Polignac number, because 346535989 - 2⁵ = 346535957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346535983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173267994 + 173267995.

It is an arithmetic number, because the mean of its divisors is an integer number (173267995).

Almost surely, 2^346535989 is an apocalyptic number.

It is an amenable number.

346535989 is a deficient number, since it is larger than the sum of its proper divisors (1).

346535989 is an equidigital number, since it uses as much as digits as its factorization.

346535989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 52.

The square root of 346535989 is about 18615.4771359748. The cubic root of 346535989 is about 702.3972158314.

The spelling of 346535989 in words is "three hundred forty-six million, five hundred thirty-five thousand, nine hundred eighty-nine".