49231729 has 2 divisors, whose sum is σ = 49231730. Its totient is φ = 49231728.

The previous prime is 49231709. The next prime is 49231733. The reversal of 49231729 is 92713294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39087504 + 10144225 = 6252^2 + 3185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49231729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49231709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24615864 + 24615865.

It is an arithmetic number, because the mean of its divisors is an integer number (24615865).

Almost surely, 2^49231729 is an apocalyptic number.

It is an amenable number.

49231729 is a deficient number, since it is larger than the sum of its proper divisors (1).

49231729 is an equidigital number, since it uses as much as digits as its factorization.

49231729 is an odious number, because the sum of its binary digits is odd.

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

The square root of 49231729 is about 7016.5325482036. The cubic root of 49231729 is about 366.5065125184.

The spelling of 49231729 in words is "forty-nine million, two hundred thirty-one thousand, seven hundred twenty-nine".