428541007 has 4 divisors (see below), whose sum is σ = 429421456. Its totient is φ = 427660560.

The previous prime is 428540989. The next prime is 428541011. The reversal of 428541007 is 700145824.

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 428541007 - 2²⁷ = 294323279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428541007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428551007) 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, 439494 + ... + 440467.

It is an arithmetic number, because the mean of its divisors is an integer number (107355364).

Almost surely, 2^428541007 is an apocalyptic number.

428541007 is a deficient number, since it is larger than the sum of its proper divisors (880449).

428541007 is an equidigital number, since it uses as much as digits as its factorization.

428541007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880448.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 428541007 is about 20701.2320164767. The cubic root of 428541007 is about 753.9296013891.

The spelling of 428541007 in words is "four hundred twenty-eight million, five hundred forty-one thousand, seven".