538618787 has 8 divisors (see below), whose sum is σ = 621911136. Its totient is φ = 456913152.

The previous prime is 538618777. The next prime is 538618793. The reversal of 538618787 is 787816835.

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 538618787 - 2⁴ = 538618771 is a prime.

It is a super-2 number, since 2×538618787² = 580220395418702738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538618727) 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 7 ways as a sum of consecutive naturals, for example, 395948 + ... + 397305.

It is an arithmetic number, because the mean of its divisors is an integer number (77738892).

Almost surely, 2^538618787 is an apocalyptic number.

538618787 is a deficient number, since it is larger than the sum of its proper divisors (83292349).

538618787 is an equidigital number, since it uses as much as digits as its factorization.

538618787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793357.

The product of its digits is 2257920, while the sum is 53.

The square root of 538618787 is about 23208.1620771659. The cubic root of 538618787 is about 813.6303979395.

The spelling of 538618787 in words is "five hundred thirty-eight million, six hundred eighteen thousand, seven hundred eighty-seven".