428376347 has 8 divisors (see below), whose sum is σ = 494620896. Its totient is φ = 363393792.

The previous prime is 428376329. The next prime is 428376373. The reversal of 428376347 is 743673824.

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 428376347 - 2¹⁰ = 428375323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428376298 and 428376307.

It is not an unprimeable number, because it can be changed into a prime (428376307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314768 + ... + 316125.

It is an arithmetic number, because the mean of its divisors is an integer number (61827612).

Almost surely, 2^428376347 is an apocalyptic number.

428376347 is a deficient number, since it is larger than the sum of its proper divisors (66244549).

428376347 is an equidigital number, since it uses as much as digits as its factorization.

428376347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630997.

The product of its digits is 677376, while the sum is 44.

The square root of 428376347 is about 20697.2545763925. The cubic root of 428376347 is about 753.8330272384.

The spelling of 428376347 in words is "four hundred twenty-eight million, three hundred seventy-six thousand, three hundred forty-seven".