427277405 has 8 divisors (see below), whose sum is σ = 542893752. Its totient is φ = 321714688.

The previous prime is 427277401. The next prime is 427277413. The reversal of 427277405 is 504772724.

It can be written as a sum of positive squares in 4 ways, for example, as 5139289 + 422138116 = 2267^2 + 20546^2 .

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 427277405 - 2² = 427277401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427277401) 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, 2513312 + ... + 2513481.

It is an arithmetic number, because the mean of its divisors is an integer number (67861719).

Almost surely, 2^427277405 is an apocalyptic number.

It is an amenable number.

427277405 is a deficient number, since it is larger than the sum of its proper divisors (115616347).

427277405 is a wasteful number, since it uses less digits than its factorization.

427277405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026815.

The product of its (nonzero) digits is 109760, while the sum is 38.

The square root of 427277405 is about 20670.6895143824. The cubic root of 427277405 is about 753.1878560855.

The spelling of 427277405 in words is "four hundred twenty-seven million, two hundred seventy-seven thousand, four hundred five".