49399799 has 2 divisors, whose sum is σ = 49399800. Its totient is φ = 49399798.

The previous prime is 49399783. The next prime is 49399811. The reversal of 49399799 is 99799394.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49399799 - 2⁴ = 49399783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49399729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24699899 + 24699900.

It is an arithmetic number, because the mean of its divisors is an integer number (24699900).

Almost surely, 2^49399799 is an apocalyptic number.

49399799 is a deficient number, since it is larger than the sum of its proper divisors (1).

49399799 is an equidigital number, since it uses as much as digits as its factorization.

49399799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4960116, while the sum is 59.

The square root of 49399799 is about 7028.4990574091. The cubic root of 49399799 is about 366.9231055506.

The spelling of 49399799 in words is "forty-nine million, three hundred ninety-nine thousand, seven hundred ninety-nine".