427697 has 4 divisors (see below), whose sum is σ = 429936. Its totient is φ = 425460.

The previous prime is 427681. The next prime is 427711. The reversal of 427697 is 796724.

427697 is nontrivially palindromic in base 14.

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 427697 - 2⁴ = 427681 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 2⁹ + 6⁶ + 7 + 9³ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427597) 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, 803 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (107484).

2⁴²⁷⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

427697 is a deficient number, since it is larger than the sum of its proper divisors (2239).

427697 is a wasteful number, since it uses less digits than its factorization.

427697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238.

The product of its digits is 21168, while the sum is 35.

The square root of 427697 is about 653.9854738448. The cubic root of 427697 is about 75.3434323962.

The spelling of 427697 in words is "four hundred twenty-seven thousand, six hundred ninety-seven".