428377333 has 4 divisors (see below), whose sum is σ = 429128128. Its totient is φ = 427626540.

The previous prime is 428377291. The next prime is 428377351. The reversal of 428377333 is 333773824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428377333 - 2⁹ = 428376821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428378333) 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 3 ways as a sum of consecutive naturals, for example, 374541 + ... + 375682.

It is an arithmetic number, because the mean of its divisors is an integer number (107282032).

Almost surely, 2^428377333 is an apocalyptic number.

It is an amenable number.

428377333 is a deficient number, since it is larger than the sum of its proper divisors (750795).

428377333 is an equidigital number, since it uses as much as digits as its factorization.

428377333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750794.

The product of its digits is 254016, while the sum is 40.

The square root of 428377333 is about 20697.2783959631. The cubic root of 428377333 is about 753.8336056073.

The spelling of 428377333 in words is "four hundred twenty-eight million, three hundred seventy-seven thousand, three hundred thirty-three".