527421 has 12 divisors (see below), whose sum is σ = 743712. Its totient is φ = 332424.

The previous prime is 527419. The next prime is 527441. The reversal of 527421 is 124725.

It is not a de Polignac number, because 527421 - 2¹ = 527419 is a prime.

It is a super-2 number, since 2×527421² = 556345822482, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5⁵ + 2¹⁷ + 4⁹ + 7 + 2¹⁷ + 1 .

It is a Curzon number.

527421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (527411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 840 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (61976).

2⁵²⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

527421 is a deficient number, since it is larger than the sum of its proper divisors (216291).

527421 is a wasteful number, since it uses less digits than its factorization.

527421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 509 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 527421 is about 726.2375644374. The cubic root of 527421 is about 80.7952456929.

The spelling of 527421 in words is "five hundred twenty-seven thousand, four hundred twenty-one".