49638937 has 2 divisors, whose sum is σ = 49638938. Its totient is φ = 49638936.

The previous prime is 49638917. The next prime is 49638959. The reversal of 49638937 is 73983694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46936201 + 2702736 = 6851^2 + 1644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49638937 is a prime.

It is not a weakly prime, because it can be changed into another prime (49638907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24819468 + 24819469.

It is an arithmetic number, because the mean of its divisors is an integer number (24819469).

Almost surely, 2^49638937 is an apocalyptic number.

It is an amenable number.

49638937 is a deficient number, since it is larger than the sum of its proper divisors (1).

49638937 is an equidigital number, since it uses as much as digits as its factorization.

49638937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 49638937 is about 7045.4905436030. The cubic root of 49638937 is about 367.5142283969.

The spelling of 49638937 in words is "forty-nine million, six hundred thirty-eight thousand, nine hundred thirty-seven".