49339309 has 4 divisors (see below), whose sum is σ = 49407904. Its totient is φ = 49270716.

The previous prime is 49339307. The next prime is 49339327. The reversal of 49339309 is 90393394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49339309 - 2¹ = 49339307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49339307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33207 + ... + 34660.

It is an arithmetic number, because the mean of its divisors is an integer number (12351976).

Almost surely, 2^49339309 is an apocalyptic number.

It is an amenable number.

49339309 is a deficient number, since it is larger than the sum of its proper divisors (68595).

49339309 is an equidigital number, since it uses as much as digits as its factorization.

49339309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68594.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 49339309 is about 7024.1945445724. The cubic root of 49339309 is about 366.7732787322.

The spelling of 49339309 in words is "forty-nine million, three hundred thirty-nine thousand, three hundred nine".