49686797 has 2 divisors, whose sum is σ = 49686798. Its totient is φ = 49686796.

The previous prime is 49686779. The next prime is 49686799. The reversal of 49686797 is 79768694.

49686797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (49686779) 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., 26512201 + 23174596 = 5149^2 + 4814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49686797 is a prime.

It is a super-2 number, since 2×49686797² = 4937555592238418, which contains 22 as substring.

Together with 49686799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49686799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24843398 + 24843399.

It is an arithmetic number, because the mean of its divisors is an integer number (24843399).

Almost surely, 2^49686797 is an apocalyptic number.

It is an amenable number.

49686797 is a deficient number, since it is larger than the sum of its proper divisors (1).

49686797 is an equidigital number, since it uses as much as digits as its factorization.

49686797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The square root of 49686797 is about 7048.8862240782. The cubic root of 49686797 is about 367.6323049319.

The spelling of 49686797 in words is "forty-nine million, six hundred eighty-six thousand, seven hundred ninety-seven".