49699817 has 2 divisors, whose sum is σ = 49699818. Its totient is φ = 49699816.

The previous prime is 49699813. The next prime is 49699879. The reversal of 49699817 is 71899694.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46840336 + 2859481 = 6844^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 49699817 - 2² = 49699813 is a prime.

It is not a weakly prime, because it can be changed into another prime (49699813) 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, 24849908 + 24849909.

It is an arithmetic number, because the mean of its divisors is an integer number (24849909).

Almost surely, 2^49699817 is an apocalyptic number.

It is an amenable number.

49699817 is a deficient number, since it is larger than the sum of its proper divisors (1).

49699817 is an equidigital number, since it uses as much as digits as its factorization.

49699817 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 49699817 is about 7049.8097137441. The cubic root of 49699817 is about 367.6644137607.

The spelling of 49699817 in words is "forty-nine million, six hundred ninety-nine thousand, eight hundred seventeen".