49779437 has 2 divisors, whose sum is σ = 49779438. Its totient is φ = 49779436.

The previous prime is 49779413. The next prime is 49779497. The reversal of 49779437 is 73497794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48636676 + 1142761 = 6974^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 49779437 - 2⁸ = 49779181 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49779407) 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, 24889718 + 24889719.

It is an arithmetic number, because the mean of its divisors is an integer number (24889719).

Almost surely, 2^49779437 is an apocalyptic number.

It is an amenable number.

49779437 is a deficient number, since it is larger than the sum of its proper divisors (1).

49779437 is an equidigital number, since it uses as much as digits as its factorization.

49779437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The square root of 49779437 is about 7055.4544148481. The cubic root of 49779437 is about 367.8606440092.

The spelling of 49779437 in words is "forty-nine million, seven hundred seventy-nine thousand, four hundred thirty-seven".