5538729 has 16 divisors (see below), whose sum is σ = 8557952. Its totient is φ = 3120768.

The previous prime is 5538727. The next prime is 5538749. The reversal of 5538729 is 9278355.

It is not a de Polignac number, because 5538729 - 2¹ = 5538727 is a prime.

It is an Ulam number.

It is a Duffinian number.

5538729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5538721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (534872).

Almost surely, 2^5538729 is an apocalyptic number.

It is an amenable number.

5538729 is a deficient number, since it is larger than the sum of its proper divisors (3019223).

5538729 is a wasteful number, since it uses less digits than its factorization.

5538729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696.

The product of its digits is 75600, while the sum is 39.

The square root of 5538729 is about 2353.4504456223. The cubic root of 5538729 is about 176.9307718673.

The spelling of 5538729 in words is "five million, five hundred thirty-eight thousand, seven hundred twenty-nine".