49779701 has 2 divisors, whose sum is σ = 49779702. Its totient is φ = 49779700.

The previous prime is 49779673. The next prime is 49779703. The reversal of 49779701 is 10797794.

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., 49420900 + 358801 = 7030^2 + 599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49779701 is a prime.

It is a Sophie Germain prime.

Together with 49779703, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49779703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24889850 + 24889851.

It is an arithmetic number, because the mean of its divisors is an integer number (24889851).

Almost surely, 2^49779701 is an apocalyptic number.

It is an amenable number.

49779701 is a deficient number, since it is larger than the sum of its proper divisors (1).

49779701 is an equidigital number, since it uses as much as digits as its factorization.

49779701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 49779701 is about 7055.4731237529. The cubic root of 49779701 is about 367.8612943115.

The spelling of 49779701 in words is "forty-nine million, seven hundred seventy-nine thousand, seven hundred one".