506438707 has 4 divisors (see below), whose sum is σ = 507241936. Its totient is φ = 505635480.

The previous prime is 506438701. The next prime is 506438719. The reversal of 506438707 is 707834605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506438707 - 2⁷ = 506438579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506438707.

It is not an unprimeable number, because it can be changed into a prime (506438701) 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, 400668 + ... + 401929.

It is an arithmetic number, because the mean of its divisors is an integer number (126810484).

Almost surely, 2^506438707 is an apocalyptic number.

506438707 is a deficient number, since it is larger than the sum of its proper divisors (803229).

506438707 is an equidigital number, since it uses as much as digits as its factorization.

506438707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803228.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 506438707 is about 22504.1930981762. The cubic root of 506438707 is about 797.0929422941.

The spelling of 506438707 in words is "five hundred six million, four hundred thirty-eight thousand, seven hundred seven".