424997543 has 2 divisors, whose sum is σ = 424997544. Its totient is φ = 424997542.

The previous prime is 424997539. The next prime is 424997557. The reversal of 424997543 is 345799424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424997543 - 2² = 424997539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424997533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212498771 + 212498772.

It is an arithmetic number, because the mean of its divisors is an integer number (212498772).

Almost surely, 2^424997543 is an apocalyptic number.

424997543 is a deficient number, since it is larger than the sum of its proper divisors (1).

424997543 is an equidigital number, since it uses as much as digits as its factorization.

424997543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 424997543 is about 20615.4685369991. The cubic root of 424997543 is about 751.8458492457.

The spelling of 424997543 in words is "four hundred twenty-four million, nine hundred ninety-seven thousand, five hundred forty-three".