49348309 has 2 divisors, whose sum is σ = 49348310. Its totient is φ = 49348308.

The previous prime is 49348307. The next prime is 49348349. The reversal of 49348309 is 90384394.

It is an a-pointer prime, because the next prime (49348349) can be obtained adding 49348309 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37638225 + 11710084 = 6135^2 + 3422^2 .

It is a cyclic number.

It is not a de Polignac number, because 49348309 - 2¹ = 49348307 is a prime.

Together with 49348307, 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 (49348307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24674154 + 24674155.

It is an arithmetic number, because the mean of its divisors is an integer number (24674155).

Almost surely, 2^49348309 is an apocalyptic number.

It is an amenable number.

49348309 is a deficient number, since it is larger than the sum of its proper divisors (1).

49348309 is an equidigital number, since it uses as much as digits as its factorization.

49348309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 49348309 is about 7024.8351582083. The cubic root of 49348309 is about 366.7955784555.

The spelling of 49348309 in words is "forty-nine million, three hundred forty-eight thousand, three hundred nine".