49999847 has 2 divisors, whose sum is σ = 49999848. Its totient is φ = 49999846.

The previous prime is 49999843. The next prime is 49999853. The reversal of 49999847 is 74899994.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49999847 - 2² = 49999843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49999843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999923 + 24999924.

It is an arithmetic number, because the mean of its divisors is an integer number (24999924).

Almost surely, 2^49999847 is an apocalyptic number.

49999847 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999847 is an equidigital number, since it uses as much as digits as its factorization.

49999847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 49999847 is about 7071.0569931234. The cubic root of 49999847 is about 368.4027740924.

The spelling of 49999847 in words is "forty-nine million, nine hundred ninety-nine thousand, eight hundred forty-seven".