49816997 has 2 divisors, whose sum is σ = 49816998. Its totient is φ = 49816996.

The previous prime is 49816981. The next prime is 49817003. The reversal of 49816997 is 79961894.

It is a happy number.

49816997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49758916 + 58081 = 7054^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 49816997 - 2⁴ = 49816981 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 (49816957) 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, 24908498 + 24908499.

It is an arithmetic number, because the mean of its divisors is an integer number (24908499).

Almost surely, 2^49816997 is an apocalyptic number.

It is an amenable number.

49816997 is a deficient number, since it is larger than the sum of its proper divisors (1).

49816997 is an equidigital number, since it uses as much as digits as its factorization.

49816997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The square root of 49816997 is about 7058.1156833818. The cubic root of 49816997 is about 367.9531411862.

The spelling of 49816997 in words is "forty-nine million, eight hundred sixteen thousand, nine hundred ninety-seven".