427693 has 4 divisors (see below), whose sum is σ = 488800. Its totient is φ = 366588.

The previous prime is 427681. The next prime is 427711. The reversal of 427693 is 396724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427693 - 2⁹ = 427181 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2¹⁷ + 6⁷ + 7² + 9 + 3⁵ .

It is a Duffinian number.

427693 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427993) 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, 30543 + ... + 30556.

It is an arithmetic number, because the mean of its divisors is an integer number (122200).

2⁴²⁷⁶⁹³ is an apocalyptic number.

It is an amenable number.

427693 is a deficient number, since it is larger than the sum of its proper divisors (61107).

427693 is an equidigital number, since it uses as much as digits as its factorization.

427693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61106.

The product of its digits is 9072, while the sum is 31.

The square root of 427693 is about 653.9824156657. The cubic root of 427693 is about 75.3431975145.

Adding to 427693 its sum of digits (31), we get a palindrome (427724).

The spelling of 427693 in words is "four hundred twenty-seven thousand, six hundred ninety-three".