500000003897 has 4 divisors (see below), whose sum is σ = 500015076096. Its totient is φ = 499984931700.

The previous prime is 500000003887. The next prime is 500000003917. The reversal of 500000003897 is 798300000005.

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, and also an emirpimes, since its reverse is a distinct semiprime: 798300000005 = 5 ⋅159660000001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500000003897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500000003887) 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, 7486229 + ... + 7552722.

It is an arithmetic number, because the mean of its divisors is an integer number (125003769024).

Almost surely, 2^500000003897 is an apocalyptic number.

It is an amenable number.

500000003897 is a deficient number, since it is larger than the sum of its proper divisors (15072199).

500000003897 is a wasteful number, since it uses less digits than its factorization.

500000003897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15072198.

The product of its (nonzero) digits is 7560, while the sum is 32.

The spelling of 500000003897 in words is "five hundred billion, three thousand, eight hundred ninety-seven".