49479949 has 2 divisors, whose sum is σ = 49479950. Its totient is φ = 49479948.

The previous prime is 49479943. The next prime is 49479961. The reversal of 49479949 is 94997494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49420900 + 59049 = 7030^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 49479949 - 2⁵ = 49479917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49479949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49479943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739974 + 24739975.

It is an arithmetic number, because the mean of its divisors is an integer number (24739975).

Almost surely, 2^49479949 is an apocalyptic number.

It is an amenable number.

49479949 is a deficient number, since it is larger than the sum of its proper divisors (1).

49479949 is an equidigital number, since it uses as much as digits as its factorization.

49479949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 55.

The square root of 49479949 is about 7034.1985328821. The cubic root of 49479949 is about 367.1214396650.

The spelling of 49479949 in words is "forty-nine million, four hundred seventy-nine thousand, nine hundred forty-nine".