424692647 has 2 divisors, whose sum is σ = 424692648. Its totient is φ = 424692646.

The previous prime is 424692643. The next prime is 424692649. The reversal of 424692647 is 746296424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424692647 - 2² = 424692643 is a prime.

Together with 424692649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 424692598 and 424692607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424692643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212346323 + 212346324.

It is an arithmetic number, because the mean of its divisors is an integer number (212346324).

Almost surely, 2^424692647 is an apocalyptic number.

424692647 is a deficient number, since it is larger than the sum of its proper divisors (1).

424692647 is an equidigital number, since it uses as much as digits as its factorization.

424692647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 424692647 is about 20608.0723746788. The cubic root of 424692647 is about 751.6660132005. Note that the first 3 decimals are identical.

The spelling of 424692647 in words is "four hundred twenty-four million, six hundred ninety-two thousand, six hundred forty-seven".