49691717 has 2 divisors, whose sum is σ = 49691718. Its totient is φ = 49691716.

The previous prime is 49691701. The next prime is 49691723. The reversal of 49691717 is 71719694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45171841 + 4519876 = 6721^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 49691717 - 2⁴ = 49691701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49694717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24845858 + 24845859.

It is an arithmetic number, because the mean of its divisors is an integer number (24845859).

Almost surely, 2^49691717 is an apocalyptic number.

It is an amenable number.

49691717 is a deficient number, since it is larger than the sum of its proper divisors (1).

49691717 is an equidigital number, since it uses as much as digits as its factorization.

49691717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 44.

The square root of 49691717 is about 7049.2352067441. The cubic root of 49691717 is about 367.6444388813.

The spelling of 49691717 in words is "forty-nine million, six hundred ninety-one thousand, seven hundred seventeen".