427528 has 8 divisors (see below), whose sum is σ = 801630. Its totient is φ = 213760.

The previous prime is 427523. The next prime is 427529. The reversal of 427528 is 825724.

It can be written as a sum of positive squares in only one way, i.e., 338724 + 88804 = 582^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 4² + 2⁴ + 5⁸ + 7 + 2¹⁵ + 8⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 427496 and 427505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26713 + ... + 26728.

2⁴²⁷⁵²⁸ is an apocalyptic number.

It is an amenable number.

427528 is a deficient number, since it is larger than the sum of its proper divisors (374102).

427528 is a wasteful number, since it uses less digits than its factorization.

427528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53447 (or 53443 counting only the distinct ones).

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

The square root of 427528 is about 653.8562533157. The cubic root of 427528 is about 75.3335073655. Note that the first 3 decimals are identical.

It can be divided in two parts, 427 and 528, that multiplied together give a triangular number (225456 = T₆₇₁).

The spelling of 427528 in words is "four hundred twenty-seven thousand, five hundred twenty-eight".