428870107 has 4 divisors (see below), whose sum is σ = 429041560. Its totient is φ = 428698656.

The previous prime is 428870059. The next prime is 428870111. The reversal of 428870107 is 701078824.

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

It is a cyclic number.

It is not a de Polignac number, because 428870107 - 2⁷ = 428869979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428870137) 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, 81918 + ... + 86995.

It is an arithmetic number, because the mean of its divisors is an integer number (107260390).

Almost surely, 2^428870107 is an apocalyptic number.

428870107 is a deficient number, since it is larger than the sum of its proper divisors (171453).

428870107 is a wasteful number, since it uses less digits than its factorization.

428870107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171452.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 428870107 is about 20709.1792932506. The cubic root of 428870107 is about 754.1225465529.

The spelling of 428870107 in words is "four hundred twenty-eight million, eight hundred seventy thousand, one hundred seven".