49979 has 8 divisors (see below), whose sum is σ = 54432. Its totient is φ = 45760.

The previous prime is 49957. The next prime is 49991. The reversal of 49979 is 97994.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49919) 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, 917 + ... + 969.

It is an arithmetic number, because the mean of its divisors is an integer number (6804).

2⁴⁹⁹⁷⁹ is an apocalyptic number.

49979 is a deficient number, since it is larger than the sum of its proper divisors (4453).

49979 is a wasteful number, since it uses less digits than its factorization.

49979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117.

The product of its digits is 20412, while the sum is 38.

The square root of 49979 is about 223.5598353909. The cubic root of 49979 is about 36.8351566201.

The spelling of 49979 in words is "forty-nine thousand, nine hundred seventy-nine".