428600587 has 4 divisors (see below), whose sum is σ = 429123456. Its totient is φ = 428077720.

The previous prime is 428600573. The next prime is 428600597. The reversal of 428600587 is 785006824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428600587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428600597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260203 + ... + 261844.

It is an arithmetic number, because the mean of its divisors is an integer number (107280864).

Almost surely, 2^428600587 is an apocalyptic number.

428600587 is a deficient number, since it is larger than the sum of its proper divisors (522869).

428600587 is an equidigital number, since it uses as much as digits as its factorization.

428600587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522868.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 428600587 is about 20702.6710112488. The cubic root of 428600587 is about 753.9645393479.

The spelling of 428600587 in words is "four hundred twenty-eight million, six hundred thousand, five hundred eighty-seven".