49205979 has 12 divisors (see below), whose sum is σ = 71728800. Its totient is φ = 32502384.

The previous prime is 49205971. The next prime is 49205987. The reversal of 49205979 is 97950294.

It is an interprime number because it is at equal distance from previous prime (49205971) and next prime (49205987).

It is not a de Polignac number, because 49205979 - 2³ = 49205971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49205971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24099 + ... + 26060.

It is an arithmetic number, because the mean of its divisors is an integer number (5977400).

Almost surely, 2^49205979 is an apocalyptic number.

49205979 is a deficient number, since it is larger than the sum of its proper divisors (22522821).

49205979 is a wasteful number, since it uses less digits than its factorization.

49205979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50274 (or 50271 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 49205979 is about 7014.6973562656. The cubic root of 49205979 is about 366.4426025917.

The spelling of 49205979 in words is "forty-nine million, two hundred five thousand, nine hundred seventy-nine".