49309279 has 2 divisors, whose sum is σ = 49309280. Its totient is φ = 49309278.

The previous prime is 49309243. The next prime is 49309291. The reversal of 49309279 is 97290394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49309279 - 2⁷ = 49309151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49309219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24654639 + 24654640.

It is an arithmetic number, because the mean of its divisors is an integer number (24654640).

Almost surely, 2^49309279 is an apocalyptic number.

49309279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49309279 is an equidigital number, since it uses as much as digits as its factorization.

49309279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 49309279 is about 7022.0566075759. The cubic root of 49309279 is about 366.6988523629.

The spelling of 49309279 in words is "forty-nine million, three hundred nine thousand, two hundred seventy-nine".