527405 has 8 divisors (see below), whose sum is σ = 636792. Its totient is φ = 419328.

The previous prime is 527399. The next prime is 527407. The reversal of 527405 is 504725.

It can be written as a sum of positive squares in 4 ways, for example, as 11881 + 515524 = 109^2 + 718^2 .

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 527405 - 2¹⁰ = 526381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 527405.

It is not an unprimeable number, because it can be changed into a prime (527407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (79599).

2⁵²⁷⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

527405 is a deficient number, since it is larger than the sum of its proper divisors (109387).

527405 is a wasteful number, since it uses less digits than its factorization.

527405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 527405 is about 726.2265486747. The cubic root of 527405 is about 80.7944286751.

The spelling of 527405 in words is "five hundred twenty-seven thousand, four hundred five".