428926 has 4 divisors (see below), whose sum is σ = 643392. Its totient is φ = 214462.

The previous prime is 428899. The next prime is 428951. The reversal of 428926 is 629824.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107230 + ... + 107233.

It is an arithmetic number, because the mean of its divisors is an integer number (160848).

2⁴²⁸⁹²⁶ is an apocalyptic number.

428926 is a deficient number, since it is larger than the sum of its proper divisors (214466).

428926 is a wasteful number, since it uses less digits than its factorization.

428926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214465.

The product of its digits is 6912, while the sum is 31.

The square root of 428926 is about 654.9244231207. The cubic root of 428926 is about 75.4155305765.

The spelling of 428926 in words is "four hundred twenty-eight thousand, nine hundred twenty-six".