424172647 has 12 divisors (see below), whose sum is σ = 458424720. Its totient is φ = 391721792.

The previous prime is 424172633. The next prime is 424172669. The reversal of 424172647 is 746271424.

It is not a de Polignac number, because 424172647 - 2¹¹ = 424170599 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 (424172677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8379 + ... + 30307.

It is an arithmetic number, because the mean of its divisors is an integer number (38202060).

Almost surely, 2^424172647 is an apocalyptic number.

424172647 is a deficient number, since it is larger than the sum of its proper divisors (34252073).

424172647 is a wasteful number, since it uses less digits than its factorization.

424172647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22010 (or 21981 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 424172647 is about 20595.4520950622. The cubic root of 424172647 is about 751.3591042192.

The spelling of 424172647 in words is "four hundred twenty-four million, one hundred seventy-two thousand, six hundred forty-seven".