49017 has 4 divisors (see below), whose sum is σ = 65360. Its totient is φ = 32676.

The previous prime is 49009. The next prime is 49019. The reversal of 49017 is 71094.

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.

It is not a de Polignac number, because 49017 - 2³ = 49009 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 48984 and 49002.

It is not an unprimeable number, because it can be changed into a prime (49019) 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, 8167 + ... + 8172.

It is an arithmetic number, because the mean of its divisors is an integer number (16340).

2⁴⁹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

49017 is a deficient number, since it is larger than the sum of its proper divisors (16343).

49017 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 49017 = (19407)₁₃.

49017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16342.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 49017 is about 221.3978319677. The cubic root of 49017 is about 36.5972884611.

The spelling of 49017 in words is "forty-nine thousand, seventeen".