428213683 has 8 divisors (see below), whose sum is σ = 439846848. Its totient is φ = 416734824.

The previous prime is 428213627. The next prime is 428213689. The reversal of 428213683 is 386312824.

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 428213683 - 2⁹ = 428213171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428213689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32941 + ... + 44062.

It is an arithmetic number, because the mean of its divisors is an integer number (54980856).

Almost surely, 2^428213683 is an apocalyptic number.

428213683 is a deficient number, since it is larger than the sum of its proper divisors (11633165).

428213683 is an equidigital number, since it uses as much as digits as its factorization.

428213683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77153.

The product of its digits is 55296, while the sum is 37.

The square root of 428213683 is about 20693.3245999767. The cubic root of 428213683 is about 753.7375994520.

The spelling of 428213683 in words is "four hundred twenty-eight million, two hundred thirteen thousand, six hundred eighty-three".