424231657 has 2 divisors, whose sum is σ = 424231658. Its totient is φ = 424231656.

The previous prime is 424231627. The next prime is 424231669. The reversal of 424231657 is 756132424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249039961 + 175191696 = 15781^2 + 13236^2 .

It is a cyclic number.

It is not a de Polignac number, because 424231657 - 2¹¹ = 424229609 is a prime.

It is not a weakly prime, because it can be changed into another prime (424231627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212115828 + 212115829.

It is an arithmetic number, because the mean of its divisors is an integer number (212115829).

Almost surely, 2^424231657 is an apocalyptic number.

It is an amenable number.

424231657 is a deficient number, since it is larger than the sum of its proper divisors (1).

424231657 is an equidigital number, since it uses as much as digits as its factorization.

424231657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 424231657 is about 20596.8846430716. The cubic root of 424231657 is about 751.3939450992.

The spelling of 424231657 in words is "four hundred twenty-four million, two hundred thirty-one thousand, six hundred fifty-seven".