429778543 has 2 divisors, whose sum is σ = 429778544. Its totient is φ = 429778542.

The previous prime is 429778477. The next prime is 429778561. The reversal of 429778543 is 345877924.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 429778543 - 2¹³ = 429770351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429772543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214889271 + 214889272.

It is an arithmetic number, because the mean of its divisors is an integer number (214889272).

Almost surely, 2^429778543 is an apocalyptic number.

429778543 is a deficient number, since it is larger than the sum of its proper divisors (1).

429778543 is an equidigital number, since it uses as much as digits as its factorization.

429778543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The square root of 429778543 is about 20731.1008631959. The cubic root of 429778543 is about 754.6546337891.

The spelling of 429778543 in words is "four hundred twenty-nine million, seven hundred seventy-eight thousand, five hundred forty-three".