538721367 has 8 divisors (see below), whose sum is σ = 720466560. Its totient is φ = 358061880.

The previous prime is 538721333. The next prime is 538721411. The reversal of 538721367 is 763127835.

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

It is not a de Polignac number, because 538721367 - 2¹² = 538717271 is a prime.

It is a super-2 number, since 2×538721367² = 580441422524697378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538720367) 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, 270267 + ... + 272252.

It is an arithmetic number, because the mean of its divisors is an integer number (90058320).

Almost surely, 2^538721367 is an apocalyptic number.

538721367 is a deficient number, since it is larger than the sum of its proper divisors (181745193).

538721367 is a wasteful number, since it uses less digits than its factorization.

538721367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542853.

The product of its digits is 211680, while the sum is 42.

The square root of 538721367 is about 23210.3719703067. The cubic root of 538721367 is about 813.6820466568.

The spelling of 538721367 in words is "five hundred thirty-eight million, seven hundred twenty-one thousand, three hundred sixty-seven".