49123279 has 2 divisors, whose sum is σ = 49123280. Its totient is φ = 49123278.

The previous prime is 49123273. The next prime is 49123339. The reversal of 49123279 is 97232194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49123279 - 2¹⁵ = 49090511 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 (49123273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24561639 + 24561640.

It is an arithmetic number, because the mean of its divisors is an integer number (24561640).

Almost surely, 2^49123279 is an apocalyptic number.

49123279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49123279 is an equidigital number, since it uses as much as digits as its factorization.

49123279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 49123279 is about 7008.8001112887. The cubic root of 49123279 is about 366.2371953263.

The spelling of 49123279 in words is "forty-nine million, one hundred twenty-three thousand, two hundred seventy-nine".