49998779 has 2 divisors, whose sum is σ = 49998780. Its totient is φ = 49998778.

The previous prime is 49998763. The next prime is 49998791. The reversal of 49998779 is 97789994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49998779 - 2⁴ = 49998763 is a prime.

It is not a weakly prime, because it can be changed into another prime (49998749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999389 + 24999390.

It is an arithmetic number, because the mean of its divisors is an integer number (24999390).

Almost surely, 2^49998779 is an apocalyptic number.

49998779 is a deficient number, since it is larger than the sum of its proper divisors (1).

49998779 is an equidigital number, since it uses as much as digits as its factorization.

49998779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 62.

The square root of 49998779 is about 7070.9814736004. The cubic root of 49998779 is about 368.4001510380.

The spelling of 49998779 in words is "forty-nine million, nine hundred ninety-eight thousand, seven hundred seventy-nine".