427320447 has 8 divisors (see below), whose sum is σ = 570109056. Its totient is φ = 284706072.

The previous prime is 427320419. The next prime is 427320457. The reversal of 427320447 is 744023724.

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

It is not a de Polignac number, because 427320447 - 2¹⁴ = 427304063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427320457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37723 + ... + 47724.

It is an arithmetic number, because the mean of its divisors is an integer number (71263632).

Almost surely, 2^427320447 is an apocalyptic number.

427320447 is a deficient number, since it is larger than the sum of its proper divisors (142788609).

427320447 is a wasteful number, since it uses less digits than its factorization.

427320447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87117.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 427320447 is about 20671.7306242124. The cubic root of 427320447 is about 753.2131461529.

The spelling of 427320447 in words is "four hundred twenty-seven million, three hundred twenty thousand, four hundred forty-seven".