427338917 has 4 divisors (see below), whose sum is σ = 427441356. Its totient is φ = 427236480.

The previous prime is 427338913. The next prime is 427338949. The reversal of 427338917 is 719833724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246678436 + 180660481 = 15706^2 + 13441^2 .

It is a cyclic number.

It is not a de Polignac number, because 427338917 - 2² = 427338913 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 (427338913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44684 + ... + 53397.

It is an arithmetic number, because the mean of its divisors is an integer number (106860339).

Almost surely, 2^427338917 is an apocalyptic number.

It is an amenable number.

427338917 is a deficient number, since it is larger than the sum of its proper divisors (102439).

427338917 is an equidigital number, since it uses as much as digits as its factorization.

427338917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102438.

The product of its digits is 254016, while the sum is 44.

The square root of 427338917 is about 20672.1773647577. The cubic root of 427338917 is about 753.2239979984.

The spelling of 427338917 in words is "four hundred twenty-seven million, three hundred thirty-eight thousand, nine hundred seventeen".