49281779 has 2 divisors, whose sum is σ = 49281780. Its totient is φ = 49281778.

The previous prime is 49281773. The next prime is 49281781. The reversal of 49281779 is 97718294.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49281779 - 2¹⁶ = 49216243 is a prime.

Together with 49281781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49281773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24640889 + 24640890.

It is an arithmetic number, because the mean of its divisors is an integer number (24640890).

Almost surely, 2^49281779 is an apocalyptic number.

49281779 is a deficient number, since it is larger than the sum of its proper divisors (1).

49281779 is an equidigital number, since it uses as much as digits as its factorization.

49281779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 47.

The square root of 49281779 is about 7020.0982186861. The cubic root of 49281779 is about 366.6306698363.

The spelling of 49281779 in words is "forty-nine million, two hundred eighty-one thousand, seven hundred seventy-nine".