424423651 has 2 divisors, whose sum is σ = 424423652. Its totient is φ = 424423650.

The previous prime is 424423621. The next prime is 424423661. The reversal of 424423651 is 156324424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424423651 is a prime.

It is not a weakly prime, because it can be changed into another prime (424423621) 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, 212211825 + 212211826.

It is an arithmetic number, because the mean of its divisors is an integer number (212211826).

Almost surely, 2^424423651 is an apocalyptic number.

424423651 is a deficient number, since it is larger than the sum of its proper divisors (1).

424423651 is an equidigital number, since it uses as much as digits as its factorization.

424423651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 424423651 is about 20601.5448692568. The cubic root of 424423651 is about 751.5072804818.

The spelling of 424423651 in words is "four hundred twenty-four million, four hundred twenty-three thousand, six hundred fifty-one".