430989947 has 2 divisors, whose sum is σ = 430989948. Its totient is φ = 430989946.

The previous prime is 430989919. The next prime is 430989971. The reversal of 430989947 is 749989034.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 430989947 - 2²⁰ = 429941371 is a prime.

It is not a weakly prime, because it can be changed into another prime (430989907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215494973 + 215494974.

It is an arithmetic number, because the mean of its divisors is an integer number (215494974).

Almost surely, 2^430989947 is an apocalyptic number.

430989947 is a deficient number, since it is larger than the sum of its proper divisors (1).

430989947 is an equidigital number, since it uses as much as digits as its factorization.

430989947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 430989947 is about 20760.2973726293. The cubic root of 430989947 is about 755.3630095053.

The spelling of 430989947 in words is "four hundred thirty million, nine hundred eighty-nine thousand, nine hundred forty-seven".