538902613 has 4 divisors (see below), whose sum is σ = 542208928. Its totient is φ = 535596300.

The previous prime is 538902607. The next prime is 538902659. The reversal of 538902613 is 316209835.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538902613 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 (538902113) 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, 1652913 + ... + 1653238.

It is an arithmetic number, because the mean of its divisors is an integer number (135552232).

Almost surely, 2^538902613 is an apocalyptic number.

It is an amenable number.

538902613 is a deficient number, since it is larger than the sum of its proper divisors (3306315).

538902613 is a wasteful number, since it uses less digits than its factorization.

538902613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306314.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 538902613 is about 23214.2760602178. The cubic root of 538902613 is about 813.7732874413.

The spelling of 538902613 in words is "five hundred thirty-eight million, nine hundred two thousand, six hundred thirteen".