424627729 has 2 divisors, whose sum is σ = 424627730. Its totient is φ = 424627728.

The previous prime is 424627669. The next prime is 424627741. The reversal of 424627729 is 927726424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334890000 + 89737729 = 18300^2 + 9473^2 .

It is a cyclic number.

It is not a de Polignac number, because 424627729 - 2¹¹ = 424625681 is a prime.

It is not a weakly prime, because it can be changed into another prime (424627769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212313864 + 212313865.

It is an arithmetic number, because the mean of its divisors is an integer number (212313865).

Almost surely, 2^424627729 is an apocalyptic number.

It is an amenable number.

424627729 is a deficient number, since it is larger than the sum of its proper divisors (1).

424627729 is an equidigital number, since it uses as much as digits as its factorization.

424627729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 43.

The square root of 424627729 is about 20606.4972520805. The cubic root of 424627729 is about 751.6277116656.

The spelling of 424627729 in words is "four hundred twenty-four million, six hundred twenty-seven thousand, seven hundred twenty-nine".