49989727 has 2 divisors, whose sum is σ = 49989728. Its totient is φ = 49989726.

The previous prime is 49989691. The next prime is 49989733. The reversal of 49989727 is 72798994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49989727 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 (49989757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24994863 + 24994864.

It is an arithmetic number, because the mean of its divisors is an integer number (24994864).

Almost surely, 2^49989727 is an apocalyptic number.

49989727 is a deficient number, since it is larger than the sum of its proper divisors (1).

49989727 is an equidigital number, since it uses as much as digits as its factorization.

49989727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 55.

The square root of 49989727 is about 7070.3413637532. The cubic root of 49989727 is about 368.3779174322.

The spelling of 49989727 in words is "forty-nine million, nine hundred eighty-nine thousand, seven hundred twenty-seven".