5108729 has 4 divisors (see below), whose sum is σ = 5114484. Its totient is φ = 5102976.

The previous prime is 5108717. The next prime is 5108731. The reversal of 5108729 is 9278015.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9278015 = 5 ⋅1855603.

It can be written as a sum of positive squares in 2 ways, for example, as 1000000 + 4108729 = 1000^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 5108729 - 2⁴ = 5108713 is a prime.

It is a super-2 number, since 2×5108729² = 52198223990882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5108695 and 5108704.

It is not an unprimeable number, because it can be changed into a prime (5108749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (1278621).

Almost surely, 2^5108729 is an apocalyptic number.

It is an amenable number.

5108729 is a deficient number, since it is larger than the sum of its proper divisors (5755).

5108729 is a wasteful number, since it uses less digits than its factorization.

5108729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5108729 is about 2260.2497649596. The cubic root of 5108729 is about 172.2282102362.

The spelling of 5108729 in words is "five million, one hundred eight thousand, seven hundred twenty-nine".