427564855 has 8 divisors (see below), whose sum is σ = 520736112. Its totient is φ = 336946368.

The previous prime is 427564793. The next prime is 427564873. The reversal of 427564855 is 558465724.

427564855 = T₃₅₃₉ + T₃₅₄₀ + ... + T₃₆₀₅.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427564855 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637822 + ... + 638491.

It is an arithmetic number, because the mean of its divisors is an integer number (65092014).

Almost surely, 2^427564855 is an apocalyptic number.

427564855 is a deficient number, since it is larger than the sum of its proper divisors (93171257).

427564855 is a wasteful number, since it uses less digits than its factorization.

427564855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276385.

The product of its digits is 1344000, while the sum is 46.

The square root of 427564855 is about 20677.6414273969. The cubic root of 427564855 is about 753.3567200865.

The spelling of 427564855 in words is "four hundred twenty-seven million, five hundred sixty-four thousand, eight hundred fifty-five".