49929749 has 2 divisors, whose sum is σ = 49929750. Its totient is φ = 49929748.

The previous prime is 49929721. The next prime is 49929767. The reversal of 49929749 is 94792994.

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., 41692849 + 8236900 = 6457^2 + 2870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49929749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49929749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49929709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24964874 + 24964875.

It is an arithmetic number, because the mean of its divisors is an integer number (24964875).

Almost surely, 2^49929749 is an apocalyptic number.

It is an amenable number.

49929749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49929749 is an equidigital number, since it uses as much as digits as its factorization.

49929749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 53.

The square root of 49929749 is about 7066.0985699323. The cubic root of 49929749 is about 368.2305310633.

It can be divided in two parts, 4992 and 9749, that added together give a palindrome (14741).

The spelling of 49929749 in words is "forty-nine million, nine hundred twenty-nine thousand, seven hundred forty-nine".