538729 has 8 divisors (see below), whose sum is σ = 573120. Its totient is φ = 505296.

The previous prime is 538723. The next prime is 538739. The reversal of 538729 is 927835.

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 538729 - 2³ = 538721 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 538694 and 538703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538721) 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, 1159 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (71640).

2⁵³⁸⁷²⁹ is an apocalyptic number.

538729 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

538729 is a deficient number, since it is larger than the sum of its proper divisors (34391).

538729 is a wasteful number, since it uses less digits than its factorization.

538729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its digits is 15120, while the sum is 34.

The square root of 538729 is about 733.9816073990. The cubic root of 538729 is about 81.3685889587.

The spelling of 538729 in words is "five hundred thirty-eight thousand, seven hundred twenty-nine".