8538261 has 8 divisors (see below), whose sum is σ = 11401824. Its totient is φ = 5683440.

The previous prime is 8538259. The next prime is 8538263. The reversal of 8538261 is 1628358.

It is a happy number.

8538261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8538259) and next prime (8538263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8538261 - 2¹ = 8538259 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538263) 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, 606 + ... + 4176.

It is an arithmetic number, because the mean of its divisors is an integer number (1425228).

Almost surely, 2^8538261 is an apocalyptic number.

It is an amenable number.

8538261 is a deficient number, since it is larger than the sum of its proper divisors (2863563).

8538261 is a wasteful number, since it uses less digits than its factorization.

8538261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371.

The product of its digits is 11520, while the sum is 33.

The square root of 8538261 is about 2922.0302873174. The cubic root of 8538261 is about 204.3885089594.

Subtracting from 8538261 its reverse (1628358), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 8538261 in words is "eight million, five hundred thirty-eight thousand, two hundred sixty-one".