428662 has 8 divisors (see below), whose sum is σ = 692496. Its totient is φ = 197832.

The previous prime is 428657. The next prime is 428663. The reversal of 428662 is 266824.

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

It is a super-2 number, since 2×428662² = 367502220488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 428662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428663) 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, 8218 + ... + 8269.

It is an arithmetic number, because the mean of its divisors is an integer number (86562).

2⁴²⁸⁶⁶² is an apocalyptic number.

428662 is a deficient number, since it is larger than the sum of its proper divisors (263834).

428662 is a wasteful number, since it uses less digits than its factorization.

428662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16502.

The product of its digits is 4608, while the sum is 28.

The square root of 428662 is about 654.7228421248. The cubic root of 428662 is about 75.4000548797.

The spelling of 428662 in words is "four hundred twenty-eight thousand, six hundred sixty-two".