49378993 has 2 divisors, whose sum is σ = 49378994. Its totient is φ = 49378992.

The previous prime is 49378969. The next prime is 49379003. The reversal of 49378993 is 39987394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 22877089 = 5148^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 49378993 - 2⁵ = 49378961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49378993.

It is not a weakly prime, because it can be changed into another prime (49378913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24689496 + 24689497.

It is an arithmetic number, because the mean of its divisors is an integer number (24689497).

Almost surely, 2^49378993 is an apocalyptic number.

It is an amenable number.

49378993 is a deficient number, since it is larger than the sum of its proper divisors (1).

49378993 is an equidigital number, since it uses as much as digits as its factorization.

49378993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 49378993 is about 7027.0187846625. The cubic root of 49378993 is about 366.8715852724.

The spelling of 49378993 in words is "forty-nine million, three hundred seventy-eight thousand, nine hundred ninety-three".