428527 has 8 divisors (see below), whose sum is σ = 472320. Its totient is φ = 385560.

The previous prime is 428509. The next prime is 428531. The reversal of 428527 is 725824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 428495 and 428504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 1912.

It is an arithmetic number, because the mean of its divisors is an integer number (59040).

2⁴²⁸⁵²⁷ is an apocalyptic number.

428527 is a deficient number, since it is larger than the sum of its proper divisors (43793).

428527 is a wasteful number, since it uses less digits than its factorization.

428527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 4480, while the sum is 28.

The square root of 428527 is about 654.6197369466. The cubic root of 428527 is about 75.3921387156.

The spelling of 428527 in words is "four hundred twenty-eight thousand, five hundred twenty-seven".