49479917 has 2 divisors, whose sum is σ = 49479918. Its totient is φ = 49479916.

The previous prime is 49479889. The next prime is 49479943. The reversal of 49479917 is 71997494.

49479917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47969476 + 1510441 = 6926^2 + 1229^2 .

It is a cyclic number.

It is not a de Polignac number, because 49479917 - 2¹² = 49475821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49478917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739958 + 24739959.

It is an arithmetic number, because the mean of its divisors is an integer number (24739959).

Almost surely, 2^49479917 is an apocalyptic number.

It is an amenable number.

49479917 is a deficient number, since it is larger than the sum of its proper divisors (1).

49479917 is an equidigital number, since it uses as much as digits as its factorization.

49479917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 50.

The square root of 49479917 is about 7034.1962582800. The cubic root of 49479917 is about 367.1213605226.

The spelling of 49479917 in words is "forty-nine million, four hundred seventy-nine thousand, nine hundred seventeen".