427261 has 8 divisors (see below), whose sum is σ = 464184. Its totient is φ = 391680.

The previous prime is 427249. The next prime is 427279. The reversal of 427261 is 162724.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 422500 = 69^2 + 650^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-427261 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 (427241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391 + ... + 1003.

It is an arithmetic number, because the mean of its divisors is an integer number (58023).

2⁴²⁷²⁶¹ is an apocalyptic number.

427261 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

427261 is a deficient number, since it is larger than the sum of its proper divisors (36923).

427261 is a wasteful number, since it uses less digits than its factorization.

427261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 672, while the sum is 22.

The square root of 427261 is about 653.6520481112. The cubic root of 427261 is about 75.3178216598.

Adding to 427261 its reverse (162724), we get a palindrome (589985).

The spelling of 427261 in words is "four hundred twenty-seven thousand, two hundred sixty-one".