423538547 has 2 divisors, whose sum is σ = 423538548. Its totient is φ = 423538546.

The previous prime is 423538463. The next prime is 423538597. The reversal of 423538547 is 745835324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423538547 - 2¹² = 423534451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423538597) 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, 211769273 + 211769274.

It is an arithmetic number, because the mean of its divisors is an integer number (211769274).

Almost surely, 2^423538547 is an apocalyptic number.

423538547 is a deficient number, since it is larger than the sum of its proper divisors (1).

423538547 is an equidigital number, since it uses as much as digits as its factorization.

423538547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 41.

The square root of 423538547 is about 20580.0521622274. The cubic root of 423538547 is about 750.9845127104.

The spelling of 423538547 in words is "four hundred twenty-three million, five hundred thirty-eight thousand, five hundred forty-seven".