427224447 has 12 divisors (see below), whose sum is σ = 664571544. Its totient is φ = 262907280.

The previous prime is 427224431. The next prime is 427224449. The reversal of 427224447 is 744422724.

427224447 is a `hidden beast` number, since 427 + 224 + 4 + 4 + 7 = 666.

It is not a de Polignac number, because 427224447 - 2⁴ = 427224431 is a prime.

It is a super-2 number, since 2×427224447² = 365041456228911618, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427224449) 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, 1825629 + ... + 1825862.

It is an arithmetic number, because the mean of its divisors is an integer number (55380962).

Almost surely, 2^427224447 is an apocalyptic number.

427224447 is a deficient number, since it is larger than the sum of its proper divisors (237347097).

427224447 is a wasteful number, since it uses less digits than its factorization.

427224447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3651510 (or 3651507 counting only the distinct ones).

The product of its digits is 100352, while the sum is 36.

The square root of 427224447 is about 20669.4084821022. The cubic root of 427224447 is about 753.1567373711.

The spelling of 427224447 in words is "four hundred twenty-seven million, two hundred twenty-four thousand, four hundred forty-seven".