424626217 has 4 divisors (see below), whose sum is σ = 434982996. Its totient is φ = 414269440.

The previous prime is 424626197. The next prime is 424626229. The reversal of 424626217 is 712626424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179265321 + 245360896 = 13389^2 + 15664^2 .

It is a cyclic number.

It is not a de Polignac number, because 424626217 - 2¹¹ = 424624169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424626287) 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 in 3 ways as a sum of consecutive naturals, for example, 5178328 + ... + 5178409.

It is an arithmetic number, because the mean of its divisors is an integer number (108745749).

Almost surely, 2^424626217 is an apocalyptic number.

It is an amenable number.

424626217 is a deficient number, since it is larger than the sum of its proper divisors (10356779).

424626217 is a wasteful number, since it uses less digits than its factorization.

424626217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356778.

The product of its digits is 32256, while the sum is 34.

The square root of 424626217 is about 20606.4605645899. The cubic root of 424626217 is about 751.6268195410.

The spelling of 424626217 in words is "four hundred twenty-four million, six hundred twenty-six thousand, two hundred seventeen".