508720413 has 4 divisors (see below), whose sum is σ = 678293888. Its totient is φ = 339146940.

The previous prime is 508720321. The next prime is 508720423. The reversal of 508720413 is 314027805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 508720413 - 2¹⁶ = 508654877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508720423) 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, 84786733 + ... + 84786738.

It is an arithmetic number, because the mean of its divisors is an integer number (169573472).

Almost surely, 2^508720413 is an apocalyptic number.

It is an amenable number.

508720413 is a deficient number, since it is larger than the sum of its proper divisors (169573475).

508720413 is a wasteful number, since it uses less digits than its factorization.

508720413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169573474.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 508720413 is about 22554.8312562963. The cubic root of 508720413 is about 798.2882216519.

The spelling of 508720413 in words is "five hundred eight million, seven hundred twenty thousand, four hundred thirteen".