422606647 has 8 divisors (see below), whose sum is σ = 437486400. Its totient is φ = 407747424.

The previous prime is 422606641. The next prime is 422606651. The reversal of 422606647 is 746606224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-422606647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422606641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45298 + ... + 53824.

It is an arithmetic number, because the mean of its divisors is an integer number (54685800).

Almost surely, 2^422606647 is an apocalyptic number.

422606647 is a deficient number, since it is larger than the sum of its proper divisors (14879753).

422606647 is a wasteful number, since it uses less digits than its factorization.

422606647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 422606647 is about 20557.3988383745. The cubic root of 422606647 is about 750.4333181915.

The spelling of 422606647 in words is "four hundred twenty-two million, six hundred six thousand, six hundred forty-seven".