5678538 has 16 divisors (see below), whose sum is σ = 11664480. Its totient is φ = 1841616.

The previous prime is 5678531. The next prime is 5678581. The reversal of 5678538 is 8358765.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5⁹ + 6⁸ + 7³ + 8³ + 5⁹ + 3¹⁰ + 8⁵ .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5678538.

It is not an unprimeable number, because it can be changed into a prime (5678531) 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, 12568 + ... + 13011.

It is an arithmetic number, because the mean of its divisors is an integer number (729030).

Almost surely, 2^5678538 is an apocalyptic number.

5678538 is an abundant number, since it is smaller than the sum of its proper divisors (5985942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5678538 is a wasteful number, since it uses less digits than its factorization.

5678538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25621.

The product of its digits is 201600, while the sum is 42.

The square root of 5678538 is about 2382.9683170365. The cubic root of 5678538 is about 178.4071184663.

It can be divided in two parts, 5678 and 538, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 5678538 in words is "five million, six hundred seventy-eight thousand, five hundred thirty-eight".