521474 has 8 divisors (see below), whose sum is σ = 823440. Its totient is φ = 246996.

The previous prime is 521471. The next prime is 521483. The reversal of 521474 is 474125.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (521471) 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, 6824 + ... + 6899.

It is an arithmetic number, because the mean of its divisors is an integer number (102930).

2⁵²¹⁴⁷⁴ is an apocalyptic number.

521474 is a deficient number, since it is larger than the sum of its proper divisors (301966).

521474 is a wasteful number, since it uses less digits than its factorization.

521474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13744.

The product of its digits is 1120, while the sum is 23.

The square root of 521474 is about 722.1315669599. The cubic root of 521474 is about 80.4904248992.

Adding to 521474 its reverse (474125), we get a palindrome (995599).

The spelling of 521474 in words is "five hundred twenty-one thousand, four hundred seventy-four".