49993147 has 2 divisors, whose sum is σ = 49993148. Its totient is φ = 49993146.

The previous prime is 49993117. The next prime is 49993171. The reversal of 49993147 is 74139994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49993147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49993097 and 49993106.

It is not a weakly prime, because it can be changed into another prime (49993117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24996573 + 24996574.

It is an arithmetic number, because the mean of its divisors is an integer number (24996574).

Almost surely, 2^49993147 is an apocalyptic number.

49993147 is a deficient number, since it is larger than the sum of its proper divisors (1).

49993147 is an equidigital number, since it uses as much as digits as its factorization.

49993147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 49993147 is about 7070.5832149830. The cubic root of 49993147 is about 368.3863179831.

The spelling of 49993147 in words is "forty-nine million, nine hundred ninety-three thousand, one hundred forty-seven".