428966 has 4 divisors (see below), whose sum is σ = 643452. Its totient is φ = 214482.

The previous prime is 428957. The next prime is 428977. The reversal of 428966 is 669824.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

428966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107240 + ... + 107243.

It is an arithmetic number, because the mean of its divisors is an integer number (160863).

2⁴²⁸⁹⁶⁶ is an apocalyptic number.

428966 is a deficient number, since it is larger than the sum of its proper divisors (214486).

428966 is a wasteful number, since it uses less digits than its factorization.

428966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214485.

The product of its digits is 20736, while the sum is 35.

The square root of 428966 is about 654.9549602835. The cubic root of 428966 is about 75.4178748251.

The spelling of 428966 in words is "four hundred twenty-eight thousand, nine hundred sixty-six".