538785091 has 8 divisors (see below), whose sum is σ = 580499360. Its totient is φ = 497109312.

The previous prime is 538785089. The next prime is 538785103. The reversal of 538785091 is 190587835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538785091 - 2¹ = 538785089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538785011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23770 + ... + 40528.

It is an arithmetic number, because the mean of its divisors is an integer number (72562420).

Almost surely, 2^538785091 is an apocalyptic number.

538785091 is a deficient number, since it is larger than the sum of its proper divisors (41714269).

538785091 is a wasteful number, since it uses less digits than its factorization.

538785091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19245.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 538785091 is about 23211.7446780719. The cubic root of 538785091 is about 813.7141281950.

The spelling of 538785091 in words is "five hundred thirty-eight million, seven hundred eighty-five thousand, ninety-one".