427773505 has 8 divisors (see below), whose sum is σ = 540345600. Its totient is φ = 324207216.

The previous prime is 427773407. The next prime is 427773517. The reversal of 427773505 is 505377724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 427773505 - 2¹³ = 427765313 is a prime.

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, 2251345 + ... + 2251534.

It is an arithmetic number, because the mean of its divisors is an integer number (67543200).

Almost surely, 2^427773505 is an apocalyptic number.

It is an amenable number.

427773505 is a deficient number, since it is larger than the sum of its proper divisors (112572095).

427773505 is a wasteful number, since it uses less digits than its factorization.

427773505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502903.

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 427773505 is about 20682.6861166532. The cubic root of 427773505 is about 753.4792452159.

The spelling of 427773505 in words is "four hundred twenty-seven million, seven hundred seventy-three thousand, five hundred five".