49999777 has 2 divisors, whose sum is σ = 49999778. Its totient is φ = 49999776.

The previous prime is 49999759. The next prime is 49999783. The reversal of 49999777 is 77799994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 12103441 = 6156^2 + 3479^2 .

It is a cyclic number.

It is not a de Polignac number, because 49999777 - 2¹¹ = 49997729 is a prime.

It is not a weakly prime, because it can be changed into another prime (49999757) 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, 24999888 + 24999889.

It is an arithmetic number, because the mean of its divisors is an integer number (24999889).

Almost surely, 2^49999777 is an apocalyptic number.

It is an amenable number.

49999777 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999777 is an equidigital number, since it uses as much as digits as its factorization.

49999777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9001692, while the sum is 61.

The square root of 49999777 is about 7071.0520433667. The cubic root of 49999777 is about 368.4026021705.

The spelling of 49999777 in words is "forty-nine million, nine hundred ninety-nine thousand, seven hundred seventy-seven".