49871279 has 2 divisors, whose sum is σ = 49871280. Its totient is φ = 49871278.

The previous prime is 49871273. The next prime is 49871287. The reversal of 49871279 is 97217894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49871279 - 2⁸ = 49871023 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 (49871273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24935639 + 24935640.

It is an arithmetic number, because the mean of its divisors is an integer number (24935640).

Almost surely, 2^49871279 is an apocalyptic number.

49871279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49871279 is an equidigital number, since it uses as much as digits as its factorization.

49871279 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 49871279 is about 7061.9599970546. The cubic root of 49871279 is about 368.0867367027.

The spelling of 49871279 in words is "forty-nine million, eight hundred seventy-one thousand, two hundred seventy-nine".