428695 has 8 divisors (see below), whose sum is σ = 521136. Its totient is φ = 338496.

The previous prime is 428693. The next prime is 428731. The reversal of 428695 is 596824.

428695 = 162² + 163² + ... + 176².

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 428695 - 2¹ = 428693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (65142).

2⁴²⁸⁶⁹⁵ is an apocalyptic number.

428695 is a deficient number, since it is larger than the sum of its proper divisors (92441).

428695 is a wasteful number, since it uses less digits than its factorization.

428695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its digits is 17280, while the sum is 34.

The square root of 428695 is about 654.7480431433. The cubic root of 428695 is about 75.4019896892.

The spelling of 428695 in words is "four hundred twenty-eight thousand, six hundred ninety-five".