427641567 has 8 divisors (see below), whose sum is σ = 570296496. Its totient is φ = 285040512.

The previous prime is 427641563. The next prime is 427641581. The reversal of 427641567 is 765146724.

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

It is not a de Polignac number, because 427641567 - 2² = 427641563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427641563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11863 + ... + 31559.

It is an arithmetic number, because the mean of its divisors is an integer number (71287062).

Almost surely, 2^427641567 is an apocalyptic number.

427641567 is a deficient number, since it is larger than the sum of its proper divisors (142654929).

427641567 is a wasteful number, since it uses less digits than its factorization.

427641567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26937.

The product of its digits is 282240, while the sum is 42.

The square root of 427641567 is about 20679.4962946393. The cubic root of 427641567 is about 753.4017721561.

The spelling of 427641567 in words is "four hundred twenty-seven million, six hundred forty-one thousand, five hundred sixty-seven".