424657081 has 2 divisors, whose sum is σ = 424657082. Its totient is φ = 424657080.

The previous prime is 424657039. The next prime is 424657097. The reversal of 424657081 is 180756424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217297081 + 207360000 = 14741^2 + 14400^2 .

It is a cyclic number.

It is not a de Polignac number, because 424657081 - 2¹⁵ = 424624313 is a prime.

It is a super-2 number, since 2×424657081² = 360667272886881122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 424657081.

It is not a weakly prime, because it can be changed into another prime (424657781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212328540 + 212328541.

It is an arithmetic number, because the mean of its divisors is an integer number (212328541).

Almost surely, 2^424657081 is an apocalyptic number.

It is an amenable number.

424657081 is a deficient number, since it is larger than the sum of its proper divisors (1).

424657081 is an equidigital number, since it uses as much as digits as its factorization.

424657081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 424657081 is about 20607.2094423287. The cubic root of 424657081 is about 751.6450297906.

The spelling of 424657081 in words is "four hundred twenty-four million, six hundred fifty-seven thousand, eighty-one".