49390447 has 2 divisors, whose sum is σ = 49390448. Its totient is φ = 49390446.

The previous prime is 49390441. The next prime is 49390469. The reversal of 49390447 is 74409394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49390447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49390441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24695223 + 24695224.

It is an arithmetic number, because the mean of its divisors is an integer number (24695224).

Almost surely, 2^49390447 is an apocalyptic number.

49390447 is a deficient number, since it is larger than the sum of its proper divisors (1).

49390447 is an equidigital number, since it uses as much as digits as its factorization.

49390447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 49390447 is about 7027.8337345159. The cubic root of 49390447 is about 366.8999497111.

The spelling of 49390447 in words is "forty-nine million, three hundred ninety thousand, four hundred forty-seven".