429350989 has 2 divisors, whose sum is σ = 429350990. Its totient is φ = 429350988.

The previous prime is 429350983. The next prime is 429350993. The reversal of 429350989 is 989053924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413430889 + 15920100 = 20333^2 + 3990^2 .

It is a cyclic number.

It is not a de Polignac number, because 429350989 - 2⁹ = 429350477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429350983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214675494 + 214675495.

It is an arithmetic number, because the mean of its divisors is an integer number (214675495).

Almost surely, 2^429350989 is an apocalyptic number.

It is an amenable number.

429350989 is a deficient number, since it is larger than the sum of its proper divisors (1).

429350989 is an equidigital number, since it uses as much as digits as its factorization.

429350989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 429350989 is about 20720.7863991693. The cubic root of 429350989 is about 754.4043012501.

The spelling of 429350989 in words is "four hundred twenty-nine million, three hundred fifty thousand, nine hundred eighty-nine".