538070917 has 4 divisors (see below), whose sum is σ = 538232256. Its totient is φ = 537909580.

The previous prime is 538070891. The next prime is 538070969. The reversal of 538070917 is 719070835.

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-538070917 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 538070917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538074917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75559 + ... + 82372.

It is an arithmetic number, because the mean of its divisors is an integer number (134558064).

Almost surely, 2^538070917 is an apocalyptic number.

It is an amenable number.

538070917 is a deficient number, since it is larger than the sum of its proper divisors (161339).

538070917 is a wasteful number, since it uses less digits than its factorization.

538070917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161338.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 538070917 is about 23196.3556835982. The cubic root of 538070917 is about 813.3544359652.

The spelling of 538070917 in words is "five hundred thirty-eight million, seventy thousand, nine hundred seventeen".