49666697 has 2 divisors, whose sum is σ = 49666698. Its totient is φ = 49666696.

The previous prime is 49666679. The next prime is 49666699. The reversal of 49666697 is 79666694.

Together with previous prime (49666679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29855296 + 19811401 = 5464^2 + 4451^2 .

It is a cyclic number.

It is not a de Polignac number, because 49666697 - 2¹⁶ = 49601161 is a prime.

Together with 49666699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49666699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24833348 + 24833349.

It is an arithmetic number, because the mean of its divisors is an integer number (24833349).

Almost surely, 2^49666697 is an apocalyptic number.

It is an amenable number.

49666697 is a deficient number, since it is larger than the sum of its proper divisors (1).

49666697 is an equidigital number, since it uses as much as digits as its factorization.

49666697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 53.

The square root of 49666697 is about 7047.4603226978. The cubic root of 49666697 is about 367.5827249870.

The spelling of 49666697 in words is "forty-nine million, six hundred sixty-six thousand, six hundred ninety-seven".