427701805 has 8 divisors (see below), whose sum is σ = 521656344. Its totient is φ = 336552000.

The previous prime is 427701787. The next prime is 427701821. The reversal of 427701805 is 508107724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32924644 + 394777161 = 5738^2 + 19869^2 .

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

It is not a de Polignac number, because 427701805 - 2²³ = 419313197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 700846 + ... + 701455.

It is an arithmetic number, because the mean of its divisors is an integer number (65207043).

Almost surely, 2^427701805 is an apocalyptic number.

It is an amenable number.

427701805 is a deficient number, since it is larger than the sum of its proper divisors (93954539).

427701805 is a wasteful number, since it uses less digits than its factorization.

427701805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402367.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 427701805 is about 20680.9527101630. The cubic root of 427701805 is about 753.4371454599.

The spelling of 427701805 in words is "four hundred twenty-seven million, seven hundred one thousand, eight hundred five".