49769749 has 2 divisors, whose sum is σ = 49769750. Its totient is φ = 49769748.

The previous prime is 49769747. The next prime is 49769767. The reversal of 49769749 is 94796794.

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., 34222500 + 15547249 = 5850^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 49769749 - 2¹ = 49769747 is a prime.

Together with 49769747, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49769749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49769747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24884874 + 24884875.

It is an arithmetic number, because the mean of its divisors is an integer number (24884875).

Almost surely, 2^49769749 is an apocalyptic number.

It is an amenable number.

49769749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49769749 is an equidigital number, since it uses as much as digits as its factorization.

49769749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 49769749 is about 7054.7678204176. The cubic root of 49769749 is about 367.8367782971.

The spelling of 49769749 in words is "forty-nine million, seven hundred sixty-nine thousand, seven hundred forty-nine".