49973789 has 2 divisors, whose sum is σ = 49973790. Its totient is φ = 49973788.

The previous prime is 49973773. The next prime is 49973797. The reversal of 49973789 is 98737994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25421764 + 24552025 = 5042^2 + 4955^2 .

It is a cyclic number.

It is not a de Polignac number, because 49973789 - 2⁴ = 49973773 is a prime.

It is a Sophie Germain 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 (49973389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24986894 + 24986895.

It is an arithmetic number, because the mean of its divisors is an integer number (24986895).

Almost surely, 2^49973789 is an apocalyptic number.

It is an amenable number.

49973789 is a deficient number, since it is larger than the sum of its proper divisors (1).

49973789 is an equidigital number, since it uses as much as digits as its factorization.

49973789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 56.

The square root of 49973789 is about 7069.2141713206. The cubic root of 49973789 is about 368.3387638455.

The spelling of 49973789 in words is "forty-nine million, nine hundred seventy-three thousand, seven hundred eighty-nine".