49779169 has 8 divisors (see below), whose sum is σ = 54370080. Its totient is φ = 45199200.

The previous prime is 49779049. The next prime is 49779173. The reversal of 49779169 is 96197794.

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

It is a cyclic number.

It is not a de Polignac number, because 49779169 - 2⁹ = 49778657 is a prime.

It is a super-2 number, since 2×49779169² = 4955931332661122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49779269) 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, 8989 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (6796260).

Almost surely, 2^49779169 is an apocalyptic number.

It is an amenable number.

49779169 is a deficient number, since it is larger than the sum of its proper divisors (4590911).

49779169 is a wasteful number, since it uses less digits than its factorization.

49779169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471.

The product of its digits is 857304, while the sum is 52.

The square root of 49779169 is about 7055.4354224243. The cubic root of 49779169 is about 367.8599838516.

The spelling of 49779169 in words is "forty-nine million, seven hundred seventy-nine thousand, one hundred sixty-nine".