5391729 has 36 divisors (see below), whose sum is σ = 9442368. Its totient is φ = 2898720.

The previous prime is 5391721. The next prime is 5391733. The reversal of 5391729 is 9271935.

5391729 = 97² + 98² + ... + 257².

It is not a de Polignac number, because 5391729 - 2³ = 5391721 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5391693 and 5391702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 88359 + ... + 88419.

It is an arithmetic number, because the mean of its divisors is an integer number (262288).

Almost surely, 2^5391729 is an apocalyptic number.

It is an amenable number.

5391729 is a deficient number, since it is larger than the sum of its proper divisors (4050639).

5391729 is a wasteful number, since it uses less digits than its factorization.

5391729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 94 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 5391729 is about 2322.0096899023. The cubic root of 5391729 is about 175.3514461121.

The spelling of 5391729 in words is "five million, three hundred ninety-one thousand, seven hundred twenty-nine".