49879189 has 2 divisors, whose sum is σ = 49879190. Its totient is φ = 49879188.

The previous prime is 49879147. The next prime is 49879213. The reversal of 49879189 is 98197894.

49879189 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., 34316164 + 15563025 = 5858^2 + 3945^2 .

It is a cyclic number.

It is not a de Polignac number, because 49879189 - 2¹⁵ = 49846421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49879789) 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, 24939594 + 24939595.

It is an arithmetic number, because the mean of its divisors is an integer number (24939595).

Almost surely, 2^49879189 is an apocalyptic number.

It is an amenable number.

49879189 is a deficient number, since it is larger than the sum of its proper divisors (1).

49879189 is an equidigital number, since it uses as much as digits as its factorization.

49879189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 55.

The square root of 49879189 is about 7062.5200176707. The cubic root of 49879189 is about 368.1061962141.

The spelling of 49879189 in words is "forty-nine million, eight hundred seventy-nine thousand, one hundred eighty-nine".