538332787 has 4 divisors (see below), whose sum is σ = 544381560. Its totient is φ = 532284016.

The previous prime is 538332749. The next prime is 538332793. The reversal of 538332787 is 787233835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 538332787 - 2¹¹ = 538330739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538336787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3024253 + ... + 3024430.

It is an arithmetic number, because the mean of its divisors is an integer number (136095390).

Almost surely, 2^538332787 is an apocalyptic number.

538332787 is a deficient number, since it is larger than the sum of its proper divisors (6048773).

538332787 is an equidigital number, since it uses as much as digits as its factorization.

538332787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048772.

The product of its digits is 846720, while the sum is 46.

The square root of 538332787 is about 23201.9996336523. Note that the first 3 decimals coincide. The cubic root of 538332787 is about 813.4863631737.

The spelling of 538332787 in words is "five hundred thirty-eight million, three hundred thirty-two thousand, seven hundred eighty-seven".