507406 has 4 divisors (see below), whose sum is σ = 761112. Its totient is φ = 253702.

The previous prime is 507401. The next prime is 507421. The reversal of 507406 is 604705.

507406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604705 = 5 ⋅120941.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126850 + ... + 126853.

It is an arithmetic number, because the mean of its divisors is an integer number (190278).

2⁵⁰⁷⁴⁰⁶ is an apocalyptic number.

507406 is a deficient number, since it is larger than the sum of its proper divisors (253706).

507406 is a wasteful number, since it uses less digits than its factorization.

507406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253705.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 507406 is about 712.3243643173. The cubic root of 507406 is about 79.7600099463.

Adding to 507406 its reverse (604705), we get a palindrome (1112111).

The spelling of 507406 in words is "five hundred seven thousand, four hundred six".