538949 has 4 divisors (see below), whose sum is σ = 550464. Its totient is φ = 527436.

The previous prime is 538943. The next prime is 538987. The reversal of 538949 is 949835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949835 = 5 ⋅189967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538943) 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, 5687 + ... + 5780.

It is an arithmetic number, because the mean of its divisors is an integer number (137616).

2⁵³⁸⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

538949 is a deficient number, since it is larger than the sum of its proper divisors (11515).

538949 is a wasteful number, since it uses less digits than its factorization.

538949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514.

The product of its digits is 38880, while the sum is 38.

The square root of 538949 is about 734.1314596174. The cubic root of 538949 is about 81.3796635765.

The spelling of 538949 in words is "five hundred thirty-eight thousand, nine hundred forty-nine".