49940791 has 2 divisors, whose sum is σ = 49940792. Its totient is φ = 49940790.

The previous prime is 49940789. The next prime is 49940819. The reversal of 49940791 is 19704994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49940791 - 2¹ = 49940789 is a prime.

Together with 49940789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49940701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24970395 + 24970396.

It is an arithmetic number, because the mean of its divisors is an integer number (24970396).

Almost surely, 2^49940791 is an apocalyptic number.

49940791 is a deficient number, since it is larger than the sum of its proper divisors (1).

49940791 is an equidigital number, since it uses as much as digits as its factorization.

49940791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 49940791 is about 7066.8798631362. The cubic root of 49940791 is about 368.2576738783.

The spelling of 49940791 in words is "forty-nine million, nine hundred forty thousand, seven hundred ninety-one".