428594407 has 8 divisors (see below), whose sum is σ = 433253520. Its totient is φ = 423958080.

The previous prime is 428594401. The next prime is 428594449. The reversal of 428594407 is 704495824.

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 428594407 - 2³ = 428594399 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 (428594401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33573 + ... + 44545.

It is an arithmetic number, because the mean of its divisors is an integer number (54156690).

Almost surely, 2^428594407 is an apocalyptic number.

428594407 is a deficient number, since it is larger than the sum of its proper divisors (4659113).

428594407 is a wasteful number, since it uses less digits than its factorization.

428594407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11393.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 428594407 is about 20702.5217546076. The cubic root of 428594407 is about 753.9609155208.

The spelling of 428594407 in words is "four hundred twenty-eight million, five hundred ninety-four thousand, four hundred seven".